So, here's the thing. For me, this is not about artistic merits as that is a huge rabbit hole that I have no desire to travel through. There is an entire generation that started reading before Claremont who think his stuff is absolute crap. There are people who would kill you for thinking that Grant Morrison's fart noises aren't genius. And on and on and on. Someday (if not even now), there will be people who love the current style of storytelling and its thematic elements. That is their choice and I take no issue with anyone's take on these things.
What I find ridiculous is the idea of complaining about there being too much diversity in a comics franchise that is unabashedly based on the Civil Rights Movement. Are there annoying people on the internet? Yes, there are. Of MANY different political viewpoints. Is that ALL there currently is to people and groups who fight for social justice? Absolutely not. There is lobbying, there are protests, there are calls to action. People's rights are still being threatened. And terms like SJW are regularly flung at people in order to shame and discourage them from caring about the human rights of others. I find the term offensive. I also find that it is often used by those privileged enough to ignore minorities and their problems. It is also exceptionally privileged to decry identity politics, since a person's race/sex/class/sexual orientation/etc. affects virtually everything about their world and the way they experience it. We ALL "play identity politics". However, some people's identities have been shoved down everyone else's throats as the default when it is not.
If you have a problem with writing and character, say that. I do too. But blaming diversity and inclusion in a comic like X-men is just ridiculous given its history.
P.S. Chris Claremont would ABSOLUTELY have been considered a progressive/"SJW" in his time.