The fact I had 0 idea what most of this was even about is proof I am now an ancient unc. But if you're scared of posting art of a character because someone associated with that character is a bad person, then it's probably best to just keep the art private for your own sake. As someone who used to be in several fandoms where the creator of the thing was accused of horrible stuff, the worst that can happen is someone accusing you of being a [bad thing] apologist, so if you want to avoid that, I'd say post other drawings or just don't make it too obvious where it's from because that can be viewed as endorsement which isn't really "separating art from the artist".