I think we're talking more about situational appropriateness than general appropriateness.
I think it's safe to say that Frod and I both go about our normal lives without uttering racist remarks.
Telling jokes on a joke thread is whole different animal. If you don't like what you read, don't read it.
Also, for your edification, I was raised Jewish and I am Polish by heritage. I have heard 'em all and I don't take it personally.
And, if you'll recall, I worked at a TBS briefly and left as soon as I had a handle on exactly what was going on there. So, your remark, although hurtful in intent, is off base.
Again, if you don't like humor, don't read.