And neither was Creed in Uncanny. He didn't kill or rape anyone there. According to Bunn, he was the most heroic member on the team, and the moral conscious of it. Creed's worst moments in Uncanny came from covering for Monet, who was killing Inhumans. Not to mention him being a rapist is speculation. I heard many say he is, but I heard others dispute that he's not. Who has he raped? It wasn't Silver Fox, because that was a memory implant. He killed her after she became a Hydra agent.
Even if Creed has been a rapist, so has Mystique and possibly Daken. Mystique had Destiny, and loved Rogue & Kurt. Daken has a bond with Laura, fans shipping him with dudes, and it not being taken so hard when he appears to be flirting with a girl in ANW. Copycat has technically raped Deadpool, but fans still like them together. and hated Creed killing her. Also, Mystique & Daken usually have sex as emotional manipulation. I think it was even stated by Daken's creator that he's asexual, and mainly uses it as a weapon -but that he's not aromantic. These guys are cool, yet somehow, relationships are beyond Creed. lol
Seems there's a bit of a divide on Magneto. To a much lesser extent, it seems like Emma & Creed, his bad deeds outweigh or cancel out the good for some. But it is seeming like he's one of the better ones over Emma & Creed for fans.
Honestly, like someone said, depending on writing, anyone can be reformed in fiction. Hell Orochimaru in Naruto was. And that guy was a huge sicko. Along with other mass murderers like Obito and Nagato. But unlike Orochimaru, those 2 died for their redemption. Orochimaru is still on the lose and making experiments.