Not all of us view this as an "all or nothing" situation. First off, I think that countries as large and with as many different types of people as the USA don't really work as a cohesive unit to begin with. People feel disconnected from the country as a whole. I'm also against imperialism so I don't see land expansion/conquering as vital to a nation's interest.

Therefore the answer in my mind is to break the nation apart into sections that make sense. There could be sections for the different major racial groups in the country (white, black, mestizo/amerindian), sections for political ideology (socialist, libertarian) and sections for religious affiliation (protestant and catholic).

I would be content with whites having a race based state encompassing at least one region - preferrably either the Pacific Northwest, Great Lakes states, or New England. Anything larger than that would be great, but anything less than that would be unacceptable.

The exchange of goods and ideas can continue without the exchange of people. No reason for us to not be on good terms with our neighbors of varying races/beliefs/faiths so long as our borders are clearly defined and respected.

Nobody would really be kicked out of the country, but rather just maybe have to move a few states over in order to live with other people like themselves.