One byproduct of the way things have gone the last few years and I think one of the most prevalent takeaways we are going to see perpetuated in the near future is that creative folks are going to have a sharp tendency to stay in their lane. They will feel a need to write and create art that is solely within their personal frame of reference and not veer outside of that in the slightest, because it is safer that way.
The problem is there isn't really such a 'frame of reference'. What am I 'supposed' to write about? I'm an American of European descent. OVER 300 years ago my 14th times great grandfather immigrated to America (long before there was a US) from Germany (which actually didn't even exist as a nation at that time, and is an agglomeration of several distinct, though related, cultures to start with). What can I write about? lol. What is 'my lane'??? I mean, I'm not actually complaining, and it isn't nearly as problematic for me as it is for some.
Still, am I forbidden to touch on American cultural elements which were introduced by non-Europeans? How about Frenchmen, but not Germans? lol. The whole CONCEPT is gravely flawed. I know you're not advocating for anything like this, I just felt it needed to be pointed out and your comment touched on it. Anyway, I think there are valid questions about racial bias, certainly. I think there are valid questions about cultural exploitation too. OTOH culture mostly is a constant process of adopting things from other places, adapting them, smooshing them together with other things from other traditions, etc. It is both problematic to say that a clearly dominant (in several respects) Euro-American society is perfectly OK to just heedlessly incorporate anything we feel like from people's who are seriously harmed by our attitudes and actions, AND problematic to say that some group 'owns the right' to be gatekeepers of something. This is of course even beyond the questions of whom it is who has any right to claim to speak for a culture.
I think there isn't an answer here, there never was, never will be. We can however safely say that when other people get hurt, we should pay attention. This is simply being a good human being. Do the right thing, and to hell with theories and whatever. The past is done (but not dead, no no) and we can't revisit it, so we are simply bound to all try to be considerate people, eh?
This is the thing that racism fails at, and one way to distinguish it. You can argue a lot of theories and whatever, but IMHO, certainly in my experience, we were a good bit less considerate back in the old days (sad that a time when I was already an adult is now the old days, heh). Were things much worse 'back then'? Sure! But the notion put forward by some today that it is 'all OK now.' or that there's 'just a few bad eggs' or whatever, that's total BS. Yet that is the whole argument that seems to be put forward by these people complaining about a 'cancel culture', that somehow THEIR offensiveness is OK, because nowadays we live in some sort of mythical Age of Aquarius and its all Rainbow Unicorn Farts, and we know how sweet those are!