The difference between Jews and Gentiles
From the very first episode.
Mr. Gold: I now know the difference between Jews and Gentiles. Gentiles are rude.
Me: Not sure why they had to make a jab like that.
I haven't seen the pilot yet, as I've just discovered the show on one of the more obscure cable channels -- you know, the ones whose only advertisers are for the scooter chair and payday loans. Nevertheless, and in spite of some very uneven (read: mediocre) writing, I'm carefully working my way through all five seasons, because I'll watch any drama that assumes the existence of G-d and an afterlife (unless it's aimed at a specific denomination).
The particular remark you refer to might have been meant as a benign joke. The stereotype of Jews is that we're rude and pushy. The surname "Gold" is usually Jewish. Based on those two facts I'll give the writer the benefit of the doubt (so far) and say that Mr. Gold was turning the stereotype on its head. It would be similar to saying to an Irish-American, "That's the trouble with you Irish. You always avoid conflict."
If I see the episode and find I'm wrong, I'll write the Anti-Defamation League.
"I've loved you my whole life."
"You've only known me three days."
"That's when my life began."