We know astoundingly little about the backstories of Toga (high schooler, loves blood), Gas Boy (inferiority complex), Mr. Compress (entertainer), Dabi (burned?), Kurogiri (good upbringing?), Twice (split personality?), Magne (feminine tendencies), and Spinner (admires Stain). Some have criminal records, but I don't see why that excludes them from anything. I'll grant you that Moonfish is an insane cannibal, yes. The Nomu aren't even people as they currently are, but maybe there'll be a cure/reversal for them. The reveal of Winged Nomu as Bakugo's chubby kindergarten pal gives me hope for that. EDIT: Oh wait never mind Stain murdered him with a knife to the eyeball.
Also, Tomura himself had a single panel backstory so far ("Why weren't you there to save my dad, All Might?" or whatever) which was the perfect setup for a sympathetic redemption.
Anyway, this was pure supposition for a resolution to the villain problem that doesn't involve declaring that they're all irredeemably evil, which I'm hoping for, because that's usually more interesting way to do it. There's no proof of anything just yet, though I'd argue that Horikoshi is dropping larger-context hints that suggest most people in his world aren't one-dimensional caricatures (such as by pushing the "think of other people's viewpoints" thing). Even AFO is probably going to have some kind of reasoning for his actions.
@Brotato:
Anyway, any predictions or speculations on Toga's blood gathering? Thought it was interesting how there was a quip about how many she was expected to collect. At first I was thinking it was just for her quirk, but maybe AFO mirrors OFA and can steal quirks via blood…? If the blood is indeed for her quirk, my guess right now is that she can transform into people after ingesting a certain amount, simply because of her weird exchange with Ochako would be nice foreshadowing.
He seemed genuinely terrified to me and telling Deku not to come rushing into the portal seemed like an act of selflessness as opposed to pride.
Blood ingesting would overlap with Stain a little too much, I think… And AFO stealing Quirks must have something to do with the hole in his hand- not that that rules out pouring the blood into the hole, I guess (eww).
Toga's power is still up in the air for sure, and we were definitely meant to notice that, based on Tsuyu's line about "not even seeing her Quirk yet." Same deal with Spinner, although I'm thinking his is probably just lizard qualities, which is why he got angry when Mandalay pointed out that he hadn't used it yet.
And agreed about Bakugo being selfless at the end. He's a good strategist, and he knew a banged-up Izuku would only get in more trouble on the other end of the portal.