Anyway, Ali G is observational of culture here in the UK too. You've all heard of townies I'm sure... chav, skalies, dons, garys... whatever you want to call them, it's poor and uneducated children who think they're gangsters... could also refer to alot of them as wiggers. Ali G is one of them. Everyday I see many real life Ali Gs... Saddening.
You see what I'm talking about? We feel so superior to these people, don't we? And it's just cool that Ali G should ridicule them.
Now, this is racist if these people are ridiculed because of the color of their skin, and just plain stuck-up if they are ridiculed because they're "townies". I don't like many people, and I most definitely don't like chavs as a rule, but it's not because of their shirts - it's because I don't have a lot to tell them and they don't have a lot to tell me. Much as every other category, unfortunately, including punks whom as a rule I like better than every other subcultural group.
As a famous Italian historian used to say, the percentage of stupid people doesn't vary across geographical areas, professions, or educational levels. Some days ago an acquaintance of mine, who happens to be an accomplished lawyer, was berating a friend of hers and pointing out that "she comes from a small town so she sometimes sticks with the narrow outlook she was brought up with". I was horrified at the idea that a person who succesfully runs her own legal practice could buy into such a demented stereotype.
Conclusion: there's stupid "townies" and there's stupid lawyers living in posh neighborhoods of a national capital, I'd rather do without both of them. Considering yourself better than everyone else because you were born to an educated family in, say, central Paris or London rather than in the middle of nowhere is tantamount to considering yourself better than everyone else because you were born white. What's the individual merit?
Mocking people because of the behavior they acquired by living where they live (when they are teens and don't have a choice, that is) is just silly and I'm not going to change my mind. On the other hand, not wanting to hang out with someone whose inclinations are very different from yours is completely legitimate - not wanting to be best mates with someone is deeply different from disrespecting them based on something they didn't choose.
In general, I would advise people who laugh at the Ali G skits to try and be slightly more mature - someone can be a "wigger" and still have potential, if you try to see through their acquired habits. If they have potential, they will probably be better company than snot-nosed kids from "good" families who spend their day switching between the PlayStation and the XBox.