The only thing I hate is the impatience with which some people act when something offends them.
I get that anger or frustration is the motivator but if this person who offended you is not just some random asshole, speak up and explain first. Maybe some people aren’t pieces of shit, they’re just repeating phrases they’ve heard a million times and never thought about.
Not everyone’s had that moment of realization that there is a ton of colloquial slang that is (or has been repurposed to be) a really fucked up dog whistle.