The deep-conservative way to save America as the people change

To me the following points are barely even debatable, although they could be nuanced a bit. For example, when it is said that as the people change the culture changes that is obvious reality, although it could be nuanced by saying it does not mean that culture doesn't also change people.

The workings of democracy depend on who the people are who vote, which explains why democracy doesn't work the same in all parts of the world. North America was founded mainly by Northern European people and the Founders virtually took that for granted---a rather big mistake. Later the people of America changed due to immigration and the culture accordingly changed. For example, in California the old majority of Northern Europeans has become a minority, and the culture has changed from traditional conservatism to a sort of hedonistic version of cultural Marxism.

Gradually across America the founding culture is becoming a minority culture do to immigration and low birth rates. Social disorder is increasing. The central government has grown huge and has become that hedonistic version of cultural Marxism. We often look like we are headed for civil war between distinctly different ethnic groups who naturally want different kinds of cultures and governments.

As said here often, human nature remains kin-centered, gender defined, age-graded, heterosexual marriage-making, hierarchical, ethnocentric, even xenophobic, and religious-making, among other things, with group-selection as the primary unit of successful selection, followed by individual selection.

Given human nature, the only way I can see to keep America one great country and to bring long-term social harmony to our increasingly disorderly multiculturalism, is to affirm and deepen the constitutional separation of powers and states set down by our Founders, and make our regions and states an ethnopluralism of ethnostates, protected by federalism. This is the conservative way to save America as the people change. To me this is barely even debatable, although it is called the ethnopluralism hypothesis. But even paleoconservatives, the real conservatives, won't even mention this deep-conservatism.