I did read the entire post, and it's made no difference to me. It came off as baity, for lack of a better term and you prefacing it with the abovemetioned text didn't make it any better.
"...the funkiest stuff you've seen going on on Twitter."
Then you go on to describe something that is essentially a non-issue. White folk not being able to participate in something that PoC created and popularised. And to that point, I saw no consensus amongst black artists that white artists or any non-black PoC couldn't participate, just a lot of dissent towards characters being melinated. Receipts? Also calling the situation "funky" comes off as tone deaf.
Even if white folk were told to leave this space for PoC creators, i don't see how that would be such a big deal. They're free to start their own trends just like everyone else. Marginalised creators have had to deal with being excluded for decades but white creators can't sit out one trend? One event?
"It's a while since I've covered any borderline offensive subject matter...ah, those were the days~."
This sounds like you have a history of stirring the pot and seeing who's attracted to or put off by the smell. Which is again, quite baity and attention seeky. I avoid these kinds of posts because it comes off as OP trying to drill their PoV into everyone else and not actually trying to have a conversation.