If you think about it, American reactionaries see the world in much the same way as white South Africans in the pre-Mandela days: completely outnumbered by people with cultural values different than their own, they hope to keep the future at bay by maintaining a monopoly on political power and imposing censorship and a police state on the masses.
A few observations are pertinent here. First, attempts to stick a finger in the dyke without a viable alternative national vision inevitably fail in the long run, as they did in South Africa. Second, the analogy is not perfect; it would be difficult to send the population of New York to live in a homeland in Nebraska. Finally, the real enemy of American reactionaries is their grandchildren, not minorities. For that problem, there is no plausible long term answer.