The parallel isn't to comedy that pokes "fun" at, for example, Canada, or the USA as such. People know enough about these places to ensure that any "fun" would have to have some basis in reality. Even then it comes better from the inside, because that way it can skate closer to the reality while modifying it. That's why a show like The Simpsons is funny.

From what I've read, it seems pretty evident that the actual target of Borat is the USA, and the real USA at that, and that it involves subjecting real Americans to a peculiar kind of stress, and filming the result - a kind of Candid Camera. (I rather take it that is what is meant by the reference to "the Ugly American syndrome" in this context.)

But in the process a peculiarly mean thing has been done to a real part of the world of which outsiders know virtually nothing; and which some people at least are going to take as an exaggeration of a real Kazakhstan, in the same way as The Simpsons is an exaggeration of reality, rather than as the total fantasy which it is.

If the same kind of exercise had been done using the name and address and personal details of some random stranger, I think it might be easier to recognise it as a gratuitous personal attack. "Come off it,   xxxxx xxxxxxx, where's your sense of humour, expressing concern about this guy dressed up as you, using your name and address and boasting about his experiences as a folk singing rapist, child abuser and necrophiliac." I suggest people who jeer at Kazakh objections to this insert their own name in that sentence.