What's something you used to do/see/say but don't anymore because you don't feel it's right?
Me personally? I've become much less tolerant of sexist humor. Back in the day, cracking a joke at women's expense was pretty common when I was a teen. As I've matured and become aware to the horrific extent of toxicity and bigotry pervading all tiers of our individualistic society, I've come to see how exclusionarly and objectifying that sort of 'humor' really is, and I regret it deeply.
I'm German myself, and luckily I haven't heard "polen" so far (Edit: Might be because I live next to France not Poland). But a lot of my classmates make a lot of kinda racist jokes about the AfD (right, potentially extremist political party) and I can't tell whether they're actually racist or not.