It is undeniable that X-Men has been in the shitter for a long while; my cut off was the Joss Whedon run. And Marvel is just barely crawling from wreckage that was the 2010s...and they’re only getting ahead because DC has been fucking up.
As for SJWs in anime, I really don’t see how. Granted, more and more recent anime are adding legit LGBT representation, but it’s done in a way that’s not as unbearable as Western media. For example, there were two trans characters in My Hero Academia; they were actually tolerable.