Xavier should have Nick Fury equivalent screen time.
I just don't buy McAvoy as the Xavier. Like to me Patrick Stewart will remain as the definitive Professor Charles Xavier in these films. While the other one was hired to fill the role of the younger version that somehow returned for more than 2 films now. I also prefer Xavier to be an old looking guy. McAvoy still looks boyish.
Xavier's sins were exactly what brought about in X3, the first movie iteration of Dark Phoenix.Also we are gonna see that Prof X is not as perfect as he wants everybody to believe and he has made some mistakes/bad things that will uncover a darker side of him.
Um, did you watch First Class, and to a lesser extent, DOFP? Xavier has *always* had at least an inclination towards chauvinism and ego. You could argue he should have gotten over it in 40 years, but its not like anyone else has had 40 years worth of character growth, either.