I didn’t swap the subject. I’m saying some Americans say stupid things, and so do some non-Americans. Well, if you’re talking about DA, I think DA should have said “some”.
If DA had said “some”, then I’d be asking him why he’s changing the subject. The subject of the thread, as defined by the OP, is not about “some people” calling Americans narrow minded, it’s about it being “fashionable” (a widespread cultural tendency) to do so.
I’m guessing OP is from Europe, because that’s where this is the case. Either way, he is right, this arrogance towards Americans is a cultural norm, not just an exception, in most European countries. Meanwhile, the reverse isn’t true, in the US falsely and maliciously stereotyping foreigners (I’m talking about contexts that go beyond jokes and playful exaggeration on late night TV: in serious conversation, about politics and international affairs) isn’t the norm, it’s the rare exception.
Sure, an American talk show host might joke that the French are going to surrender in the first five minutes of a war. But no one goes on CNN to say that the French are cowards not worth forming an alliance with. Meanwhile, in Europe, American backwardness, narrow mindedness, etc. is the subject of pretty much every political conversation, and the underlying premise of why American ideas are to be rejected, and American initiatives are to be opposed.