And olddude has a grasp of the other aspect of it. When some nincompoop or would-be overlord spouts racist and nationalistic ideas—ideas that are aimed at limiting the freedom of people to live how and where they wish, limit their ability to support themselves, and even goes so far as to prescribing what sort of art and music they be allowed, and not be allowed to make or enjoy—then those who recognize the nature of the evil being advocated have an obligation to speak their minds on the matter.

There was a nasty-minded little twerp with a funny postage-stamp moustache who spouted the same kind of ideas over seventy years ago, and not only were there an insufficient number of people who stood up to him, but there were large numbers of people who either ignored him, hoping he would just go away, or actually agreed with him sufficiently that they voted the little weasel into office. Then, the rest of the world had to deal with him, and it wasn't very nice. Lot's of people died before it was all over.

Whenever it rears its head, call if for what it is. Otherwise, you share the blame for what may happen.

Don Firth (note the flaming sword!)