I am all the way with you on this. I am Polish, should I be offended when my chickano neighbor calls me a polak? Fuck no! By the way my wife is a polish Gypsy , Roma. That romanian guy was a idiot, People just look for things to get offended by in today's day of age.
I am Polish too! My grandfather was 100% Polish and was called a garden variety of different things. He never gave a shit.
I think the huge issue is that offense is a first world problem. We have so much free time that we think up ridiculous first world problems like being offended at a word that is only now a problem. It's exhausting!