Do you mean guys like Klansmen?
Most folks don't perceive any threat from the kluxers, despite SPLC and others' attempts to puff up that paper
tiger clown hat. Kinda like Abe Foxman of the ADL finding anti-semites under every bed...but ignoring those anti-semites who are, you know, actually dangerous and expressly killing Jews for being Jews.
There
are right wing wackos, but the right wing of America is not as tolerant of its wackos as the left is, as there is no right-wing corollary to "No enemies to the left.". They get run out of polite company and marginalized quickly. Bill Buckley set the standard back in the 1950s and early 1960s: no anti-semitic or racist or anti-American types in mainstream American conservatism.
Some thought he was not selective enough and gave some good folks their walking papers. I think they have a point, but nobody else was willing or able to do the necessary housecleaning.
The thing about the JBS-ers is that they may have some conspiracy theory tinfoil hattery, but it is of a fairly harmless sort. Commies in the gov't? Well, investigate & find them out. And, since there
were a lot of commies in the gov't, maybe less tinfoil and more, uh, "leather hattery?" And if we pull out of the UN, what are the material repercussions? Fewer subsidized third-world, anti-American socialists speechifying on our dime and fewer children raped for food by UN-sponsored soldiers.
Left-wing wackos end up pumping up the state, imposing regulations, and passing crazy laws. And then make it illegal (as in "hate crime") to criticize their leftist project.