It was to illustrate that a majority does not need specific support groups when everywhere they turn, they see people just like them.

The majority is not everyone.

You are saying that in a school of 100 students and five POC people who may be separated into different classes and not have the chance to meet, they don't deserve a space to meet people like them?

My initial reaction to your statement is that your opinion is racist if you think they "deserve" a space to meet people that randomly have the same skin color as them. However if the playground is racism and treating people based on skin colour, then no they do not deserve such a place. They have such a place in their home countries. It's a privilege that they're allowed into a white majority school.

Not officially, but they exist.

Secretly or under attack.

begrudge POC having some space where before they had none and think that it is a zero sum game

It is a zero sum game.

you can design your own POC free life by checking demographics beforehand and going to a largely white school and living in one of those sundown communities.

No, I'll stay in my own community and advocate for my interests. If they don't like it in white communities, then they can always return to where they came from. It's not reasonable to ask whites move out of their own communities and rebuild new ones just because you feel non-whites have a right to white communities. It's not a right, it's a privilege. A privilege which can be taken away if we so desire, which we do.

Even without being that drastic, no one is stopping you from only having white friends.

Most of my friends are not of the same ethnicity as me. I like meeting new people and cultures. This is not about friends but what we want our society and community to be like. We don't want crime, rape, terrorism, etc. that follow from multiethnic communities and countries. We want a united country with no ethnic tensions to help us preserve and keep our families safe and fed.

The US has never been an ethnostate, and it's not going to ever be.

The US has always been an ethnostate and it's going to continue to be that. It currently has a non-white population temporarily residing on our lands.
"The general principles on which the fathers achieved independence, were the general principles of Christianity, in which all those sects were united, and the general principles of English and American liberty, in which all those young men united, and which had united all parties in America, in majorities sufficient to assert and maintain her independence. Now I will avow, that I then believed and now believe that those general principles of Christianity are as eternal and immutable as the existence and attributes of God; and that those principles of liberty are as unalterable as human nature and our terrestrial, mundane system." - John Adams, Letter to Thomas Jefferson, June 28, 1813

“The influx of foreigners must, therefore, tend to produce a heterogeneous compound; to change and corrupt the national spirit; to complicate and confound public opinion; to introduce foreign propensities. In the composition of society, the harmony of the ingredients is all-important, and whatever tends to a discordant intermixture must have an injurious tendency…The United States have already felt the evils of incorporating a large number of foreigners into their national mass; by promoting in different classes different predilections in favor of particular foreign nations, and antipathies against others, it has served very much to divide the community and to distract our councils. It has been often likely to compromise the interests of our own country in favor of another. The permanent effect of such a policy will be, that in times of great public danger there will be always a numerous body of men, of whom there may be just grounds of distrust; the suspicion alone will weaken the strength of the nation, but their force may be actually employed in assisting an invader.” -Alexander Hamilton, January 12, 1802

"To be consistent with existing and probably unalterable prejudices in the United States the freed blacks ought to be permanently removed beyond the region occupied by or allotted to a white population" -James Madison to Robert J. Evans (1819)

“The Number of purely white People in the World is proportionally very small …. I could wish their Numbers were increased…. But perhaps I am partial to the complexion of my country for such kind of partiality is natural to mankind.”-Benjamin Franklin

"the nest from which all America, North and South, is to be peopled, and the hemisphere was to be entirely European...nor can we contemplate with satisfaction either blot or mixture on that surface" -Thomas Jefferson

" It will probably be asked, Why not retain and incorporate the blacks into the state, and thus save the expence of supplying, by importation of white settlers, the vacancies they will leave? Deep rooted prejudices entertained by the whites; ten thousand recollections, by the blacks, of the injuries they have sustained; new provocations; the real distinctions which nature has made; and many other circumstances, will divide us into parties, and produce convulsions which will probably never end but in the extermination of the one or the other race." -Thomas Jefferson, Notes on the State of Virginia, (1784)

"Where was there ever a confederacy of republics united as these states are...or, in which the people were so drawn together by religion, blood, language, manners, and customs?" -John Dickinson

“Against the insidious wiles of foreign influences, (I conjure you to believe fellow citizens) the jealousy of a free people ought to be constantly awake; since history and experience prove that foreign influence is one of the most baneful foes of Republican Government” -George Washington, Farewell Address 1796

"I say, that, at the time I drew that constitution, I perfectly knew that there did not then exist such a thing in the Union as a black or colored citizen, nor could I then have conceived it possible such a thing could have ever existed in it; nor, notwithstanding all that has been said on the subject, do I now believe one does exist in it."-Charles Pinckney, Admission of Missouri, House of Representatives (1821)

https://en.m.wikipedia.org/wiki/Naturalization_Act_of_1790 "The law limited naturalization to "free white person[s] ... of good character", thus excluding Native Americans, indentured servants, slaves, free blacks and later Asians"

1664 law: "Be it further enacted by the authority advice and consent aforesaid that whatsoever freeborn woman shall intermarry with any slave from and after the last day of this present Assembly shall serve the master of such slave during the life of her husband, and that the [children] of such freeborn women so married shall be slaves as their fathers were. And be it further enacted that all the [children] of English or other freeborn women that have already married Negroes shall serve the masters of their parents til they be thirty years of age and no longer"

1691 law: "For prevention of that abominable mixture and spurious [children] which hereafter may increase in this dominion, as well as by negroes, mulattos, and Indians intermarrying with English, or other white women, as by their unlawful accompanying with one another," "And be it further enacted...that if any English woman being free shall have a bastard child by any negro or mulatto, she pay the sum of fifteen pounds sterling, within one month after such bastard child shall be born, to the Church wardens of the parish...and in default of such payment she shall be taken into the possession of the said Church wardens and disposed of for five years, and the said fine of fifteen pounds, or whatever the woman shall be disposed of for, shall be paid, one third part to their majesties...and one other third part to the use of the parish...and the other third part to the informer, and that such bastard child be bound out as a servant by the said Church wardens until he or she shall attain the age of thirty yeares, and in case such English woman that shall have such bastard child be a servant, she shall be sold by the said church wardens (after her time is expired that she ought by law serve her master), for five years, and the money she shall be sold for divided as if before appointed, and the child to serve as aforesaid".

“Providence has been pleased to give this one connected country, to one united people; a people descended from the same ancestors, speaking the same language, professing the same religion, attached to the same principles of government, very similar in their manners and customs, and who, by their joint counsels, arms and efforts, fighting side by side throughout a long and bloody war, have nobly established their general Liberty and Independence.” - John Jay, "Federalist No.2" (1787), The Federalist Papers

It was always an ethnostate from the very beginning.

I want to give you the benefit of a doubt but you seem like you've already bought into the neo-nazi ideology.

Not an argument. Please look into saidits principle: the pyramid of debate. Please don't devolve this site into meaningless name callings. If you're not debating in good faith and just want to preach, then we ought to end the conversation.