The appeal of "When you Wish Upon a Weinstein" was that Peter was blissfully naive, and it took a direct negative reaction to his ignorance to educate him on the way things really work. The problem with so much racial humor these days is that instead of mocking ignorance and separation, it tries to mock sensitivity. The problem with the latter is that it just lacks any class, as limits itself to the old stereotype jokes that have been played out a million times. By mocking people for trying to not to be shitheads, you look like a shithead, regardless of intent.