Ain't about the guy being Jewish, Ben, that bugs me insofar as the hipster posturing thing.
It's about the guy being of a particular subculture that's insanely cloistered unto itself... or the exaggerated idea of that then being sold as the reason you're supposed to like the performed material as opposed to the performed material itself. That's why the next logical comparison was the Amish.
Identity As Schtick drives me crazy. Some dude who happens to be Jewish or Islamic or Scientologist or Presbeterian or whatever rapping is not the point of what bothers me. Some dude saying "I was completely outside of the culture and now it is wacky and ca-razy that I am doing the thing that is popular in the mainstream and, oh, by the way, even though I have been performing in bars for five years, I am still completely naive to you world and definitely treat me like a circus freak and pay me more money"... that's what bugs me.
It's like that old SNL sketch "Unfrozen Caveman Lawyer" you know?
Yeah, dude was a caveman who got unfrozen but... in the intervening fifteen years, he got a law degree, got married, had some kids and clearly mastered all the subtleties of the modern world... but whenever it suits him to win a case or to get his cappuchino returned because there wasn't enough foam, he'll start talking about how he doesn't UNDERSTAND our modern world and he doesn't UNDERSTAND how the little men put on shows in the television box and...
It's bullshit. He's playing off people's stereotypes and ignorance to maintain a convenient pose that allows him to not actually have to try.
And bleh. Bleh and feh to that. Has nothing to do with what slightly different invisible bearded man your parents told you will have you tormented by monsters after you die if you touch your pee-pee and everything to do with how intellectually insulting the Fake Outsider - Unfrozen Caveman Lawyer schtick is.
I like the hell out of some Beastie Boys stuff. And Eminem's less misogynistic stuff is usually at least funny. And Neil Diamond performs in a genre of pop music that does not interest me no matter how well or poorly performed.
EDIT: to wombat's point, it was fine when Bronson Pinchot stole Andy Kaufman's schtick, watered it down for people on tractors and called it "Balki"... that's okay, that's how television works. But if he spent the rest of his life wandering around claiming to actually BE from an obscure Greek island and furthermore fifteen years later pretending to still be shocked that MacDonalds didn't sell sheep burgers, man, that crap would be annoying.
This is also why Yakov Smirnov needed to be hung from the neck until dead. I mean, the original premise of his comedy what lame enough but whatever, there's lots of lame standups out there. Ten years later, when he's living in a nice condo in a good part of town and is pissed to wait five minutes in line for coffee instead of three hours for a beet, man, that's when the dude absolutely needs new material.
See also Larry The Cable Guy never breaking character. Bullshit.