There are certain categories of insults where if you call a horrible person that, we can assume you want to use it a lot more often and you said “Ah! This person! I can use it for this person and it’s okay!”

Right it's the excuse to use it. Find someone of a group you dislike. Wait until they piss you off enough. Use the slur/insult/whatever. "When all you have is a hammer, every problem looks like male socialization"

It’s a bit like the Donald Glover routine where he gets into an argument with a little person on the subway and he’s thinking “How can I get him to call me a n—— so I can call him a midget?”