We needed (or at least we could tolerate) one or two more films starting from that situation with those characters. If they weren't made, fans would be clamoring for them, until they were.
I don't see much point in the next series of three films. There was something lacking in those pictures.
But I don't think one can blame whatever's wrong in the current series on political correctness. Make everybody White and the movies wouldn't be any better.
No, they wouldn't, but that doesn't mean political correctness did not contribute quite a lot to how bad they were.
I don't think female warriors resonate with the 14 year old boy demographic, (which is supposedly the target audience for this sort of stuff) at least not in the way of "I want to be like her."
Boys want to see heroes that they can imagine are them. They want to be inspired by someone for whom they can suspend disbelief that they are not this person doing heroic deeds on the screen.
To me, those silly characters were a detriment. They should have never made any antecedents or sequels to the original Star Wars.