It's hard to give examples because any example that I give could be explained away by alternate explanations. But as someone who posts a lot on here, it does feel like going against the dominant narrative, even jokingly will get you down voted. Like, for example, if I said that I believed in a smaller government, it doesn't really matter what reasoning I have behind it because that's a conservative POV.

Personally I'm a Democrat and I also try not to let down votes stop me from expressing my own opinions. But there are certain viewpoints (that are not bigoted) that are extremely unpopular here.

I don't think giving a list of examples will convince you otherwise; in my experience people are more likely to just argue about the examples in order to resist the point.

I asked a question the other day that gave the appearance that I might sympathise with a conservative viewpoint, and it was the most downvoted post of my entire life within 30 minutes. Let me reiterate - I was downvoted en masse for asking a good faith question and not accepting the Democratic narrative as a given. Folks instantly assumed I must be asking the question with an (conservative) answer already in mind, and dogpiled me for it.

Ironically enough, there was one good faith reply that answered my question and resulted in me ultimately agreeing with the Lemmy-approved viewpoint. But I almost didn't get that answer due to the amount of bad-faith responses and downvotes I was swamped with.