Well, I called it. Not that it was hard to call.
For me, there are three problems with the whole "Villain is a villain because they have a tragic bitter backstory that broke and hardened them" schtick. First, it's a cliche, that continues to be used with the majority of villains that get a backstory of any sort, so it's kind of boring. Second, it's melodramatic. Third, I don't usually buy it, partly because people go through horrible stuff all the time and don't turn into villains, and partly because as near as I can figure most real-life villains don't have backstories like that. If you look at people like Hitler, or Benito Mussolini, or Pol Pot, or Pinochet, or Osama bin Laden, or Dick Cheney, or John Bolton . . . sure, most of them didn't have perfect childhoods, who does, but they were mostly reasonably well off, or even rich, without a lot of obvious trauma. About all you can say about Hitler is he had an authoritarian father--yeah, him and every other kid in Austria or Germany at the time! So this kind of backstory just never really rings true to me; it's a comic-book kind of logic that seems vaguely like it ought to make sense, but doesn't.