Originally Posted by
FUBAR007
Part of it's a shift in English-speaking culture since the 60s and again since the 80s. Silver Age Xavier's behavior was largely in line with what was acceptable at the time for a "stern authority figure." Now, he's considered a manipulative, abusive white patriarch. Starting in the late 70s, but primarily in the 80s, Claremont softened him into the well-meaning, but pragmatic father-mentor that carried over into the cartoons and movies. Under today's norms, that's viewed as just another form of white male patriarchy, albeit of the condescending rather than abusive type. Today's liberalism operates from a more anarchic sensibility--i.e. the very concept of authority is inherently hypocritical and unjust--and views minority rights, of which the X-Men mythos is a metaphor, through the lens of intersectionality, not MLK-style integrationism and universal humanism. So, Xavier's dream comes off to many, including a lot of the last 15 years of X-Men writers, as both obsolete and reactionary. At best, well-intentioned, but wrongheaded.
Another part of it is the relentless use of deconstruction and cynicism as a mode in superhero storytelling. To go where Whedon, Brubaker, et al wanted, Xavier HAD to be revealed as a villain or their story visions wouldn't work. In order for Scott and Emma to become the leaders of all mutantkind and do so in their own right, Xavier had to be torn down. They couldn't just inherit "the crown" from him because then they would've just been his students carrying out his work. For their leadership to be truly theirs, it had to be made unique to them, and so Xavier had to be made morally lesser to them and subordinate to them.
The problem with all of this, though, is that if Xavier's a bad guy--a slaver, a mind-raper, etc., the X-Men's continued existence makes no sense in-universe. Why would anyone follow this guy? Why would his former students continue to staff and support institutions (i.e. the school, the X-Men, etc.) he created? Why would they continue to affiliate themselves with such a person? Making Xavier a villain and evil hypocrite breaks the franchise at a foundational level.
I agree with your position. I prefer Xavier as the kindly, but worldly father-mentor, leader, and crusader for mutant rights. IMO, he has to be some form of that for the X-Men franchise to make any sense. But, I'm a relic. I still believe in MLK-style integrationism, tolerance, and universal human rights. That is very much out of fashion today.
For Xavier to resonate with contemporary audiences in the way he's supposed to, he'd have to be rebooted as a member of one or more real world minorities. He can't be a rich, educated, straight white guy. (Yes, he's typically portrayed as physically disabled, but to many people his whiteness outweighs that.) Marvel would need to reinvent him as a black man, or as a gay man, or as a minority woman, etc.