There are publicly active fringe groups of all sorts. You can join the Communist Party too.

I got the sense that this was far more than fringe.

And to expand/clarify, my point is that racism and xenophobia have been widespread among European-Americans since colonization. And they remain so, and not just in the "red states". Elsewhere, they're just hidden, especially by men from women. KKK may be a fringe, but there's a broad resonance. Consider, for example, that Harvard University professor Henry Louis Gates, Jr. was arrested for breaking into his own house!

Anyway, the Trump team has now somehow made European-Americans more racist and xenophobic. They just did an outstanding job with the Wallace strategy. Wallace was appealing to blue-collar union members in the North. But now unions are largely gone, and that demographic is either unemployed, or earning minimum wage. And arguably, that has exacerbated racism and xenophobia. Pushback against globalization and the concentration of wealth.

Damn! "... the Trump team has not somehow made European-Americans more racist and xenophobic. ..."