I'm getting to be quite old, and I have very little tolerance for people with strong political beliefs. For people I meet in passing, I generally ignore stupid beliefs and simply transition the conversation elsewhere - it's not worth the time and effort.

However, for anyone I'm going to spend more than passing time with, I usually ridicule and/or contradict what I consider unproductive beliefs if they are expressed strongly. This puts the target on notice that I don't approve and that they had best not talk about it in my presence; occasionally, it gets rid of the target completely, a fact for which I have been grateful many times.

My reasons for so blatantly violating social norms centers largely around the fact that no matter what action I take, I will have at best minimal impact on this person. If I support their view, it is reinforced. If I do nothing, they assume I don't have a problem with it, and it is likewise reinforced. If I directly contradict their view, it also reinforces it, as discussed repeatedly in the articles on this site.

Quite frankly, I have limited time remaining, and better things to do with that time than try to fix an occasional broken belief system in a low- or normal-functioning person. If you're not going to lead and you're not going to follow, then get out of the way.