I empathize. I'd like to point out, though, that one might call this politics and/or philosophy instead. One might also call religion politics (in some cases, at least) and/or philosophy and one might not be happy with any particular politics/philosophy of choice. Point being: Just because one might criticize some strongly held idea, it doesn't necessarily mean one should not be a zealot when it comes to Freedom and openness
But, in my opinion, one shouldn't make others feel like something the cat has dragged in, so even if one thinks some individuals idea is silly, one should often probably shut up about it to their face.