I'm not the guy...
David Weaver
..I just have an opinion that's the opposite of yours. I think you're out of bounds, but have zero interest in you agreeing with me. It's just a statement.
I can make a pretty reasonable determination of Bill's intent. His intent appears to have been helpful. This should be important if you're deciding to be offended or not, but it may not be to you.
I don't think of my Chinese relatives when I see what he said because I know it's not his intent. If someone else has angered you by saying it and you're laying it all on Bill (who appears to be using it as a method of efficient definition), that's all uncalled for.
Quite often, I'm offended by something but bite my tongue because it wasn't the material issue that someone was bringing up and I know it wasn't their intent. The nature could be something like this (ethnic) or something else entirely.
I have a PA dutch background and some Mennonite blood (I'm not Mennonite). I don't get inflamed at Amish jokes or angry no matter how many times someone asks me if I know Lebanon Levi (I've never seen the show they mention).
It's a choice. If someone had the intent to offend me and I could tell that was their intent, my response would be different. If they didn't have an intent to do so, I just don't feel like I have the right to try to control their speech or side track a significant and material discussion. it's really gotten out of control in the last two decades and it preys on the desire of most people to feel like they haven't made anyone else feel bad.