Frankly, in this particular context (comedy), I think this comment is well placed.
Towards what race?
Remarkable how plump and stupid those racist jokes are, and antisemitic jokes seem particularly so. Compare that one with the joke about going to Australia.
So any comment about an article that's about a particular ethnicity is going to be racist in your book?
In today's society you won't win a debate if you call your opponent a n.....r, but if you call xir a "racist" most of the audience will believe you are representing the good and will hate the other like a Pavlovian dog.
Are you actually, seriously using the xir pronoun?
Well, either way- that's the most hilarious thing I've seen so far in this thread.
(EDIT: Actually, I think it's even more hilarious if you're serious!)