it's not just brits but there is something pretty interesting going on in terms of the whole world looking at american cultural exports and totally misinterpreting what america and americans are actually like. there's a certain level of ignorance and a lack of lived experience in our interpretations of that particular place i think. this obviously goes far beyond rap.
whereas americans themselves have a different problem, which is that they happen to live in a place which is such a huge producer of culture (particularly tv and films), and they are in i think a rapid feedback loop between their lives and reflections of their lives on screen. which we are spared to some extent i think.
Americans problem is one of essentialist thinking and not only that but in their mind things that don't follow or come from that are somehow more deficient
I think my problem with your interpretation as far as using words such as ignorance and misinterpreting is it gives this sense that these interpretations are inept or somehow lesser than, if any the thing with British music that arguably is waining over the years is how such interpretations can lead to weird and interesting mutations of those original sources that they might not have thought of, shit we regularly crack on how blinkered and up their own arse in terms of how Americans view themselves and the world so while i understand the sense of wanting to pay respect at the same time that doesn't mean i should have to kneecap myself to talk about it so they can feel either more superior or an idea that
the limies know their place or whatever.
I've noticed maybe a product of twitter and social media and how it exascerbates conversations but African Americans when wanting to engage in as far as i'm concerned the exhausting conversation of "who makes culture?" the way they talk about their own creations sometimes takes on the tone of old time American Exceptionalism "we set trends you all follow remember that" and then when the Supreme court or something revokes another law the switch to talk of how America is again essentially a hell on earth and the sun should just crash into them right now.
and the flop back and forth between these two modes when their not reusing the same 4 jokes about Britian(i sometimes think whenever awful stuff happens like with Roe v Wade making fun of England and its "weird" and "old" traditions is the equivalent of punching a pillow)