Man I get that you're making a sarcastic joke but like... We literally just talked about how it's a slur. You (hopefully) wouldn't use other equivalent slurs (I don't really like to type them but sp-c, n----er, g--k, etc), and while it takes time for people to adjust to changes in what's societally okay it really is just as not okay to throw around slurs like that or, for another lesser known example, eskimo (which is literally just a euphemism for savage). Just because people don't talk about it as much doesn't mean that there isn't an entire group of people who have been attacked and treated like scum with the same words, who really don't want to hear them used towards their people.

I'm not telling you this to criticize you, mind you, because two years ago I was in the same place. Just food for thought, I never grew past it until I became more informed and just would like to help.