Beast’s descent into villainy has been thirty years in the making, and one of the most organic character arcs I’ve ever seen, despite having been penned by a huge roster of unconnected writers. He gave Threnody to Sinister in 1993, for crying out loud. This all began with him making occasional ethical concessions in the name of science, or advancement, or the greater good, but has really seamlessly evolved into a paranoia and trauma-fueled god complex over the course of many, many years of extremely dubious choices and actions. I actually think it’s a real testament to several decades of writers that it took him doing mad scientist nazi experiments on prisoners of war and punishing dissent among his teammates by lobotomizing and enslaving them for many readers to realize how villainous he is. He’s been on this path for half his existence as a character, under the penmanship of Nicieza, Claremont, Morrison, Whedon, Bendis, etc. I haven’t found much to like in Percy’s runs on X-Force or Wolverine, and honestly I think his writing of Beast is a little heavy-handed, but it’s definitely not coming out of left field.
Xavier knows exactly what’s going on, and he knew exactly what he was doing when he put Hank in that role. Xavier’s no Mother Teresa himself, and putting Beast in position to get his hands dirty to preserve [i]his[/i] mutant utopia, while also retaining the benefit of plausible deniability, is absolutely his MO.
Maybe it doesn’t get mentioned in Avengers books, but it’s still brought up in X-titles. She was grief-stricken and mentally manipulated, though, right? That’s a long way from the stairway of moral compromises that led to Hank hitting ethical bottom. The fact that the X-Men, for years, largely held that against her, despite knowing the circumstances involved, is actually surprisingly emotionally sophisticated writing for Marvel. It would have all been pointless if everyone was understanding and forgave her right away, but her actions had real consequences. Despite her lack of agency, many mutants held that against her for [i]years[/i] after the damage had even been somewhat undone. That’s storytelling with some actual depth.