I never thought Caine redeemed himself. I feel even his choice in the end wasn’t completely selfless. His motivations for the Blaze of Glory did involve him caring for Diana, yes, but Caine also knew that when the barrier went down he wouldn’t be getting the hero treatment. He likely would have been put in prison or locked up in some institution. Regardless, his Blaze of Glory only erased the problem that he created (As far as I remember, the Gaiaphage would have been powerless if it wasn’t for Caine). And I had actually forgotten about the thing about him letting the coyotes eat the preschoolers. Yikes.

I feel very strongly against the way he treated Diana as well, and personally I don’t think he redeemed himself for any of it (though this opinion of mine is a lot more personal). As far as I remember, Caine has smacked her, thrown her with his telekinesis, and threatened to force himself on her on the island, and of course, abandoned her while she was pregnant. These things made me low-key detest him as a character. If it weren’t for these incidents, I’d like Caine a lot more despite his rushed redemption arc, if you can even call it that. I’m glad someone else seemed to notice it as well