As I've said elsewhere, it's not a question of whether the behavior can be justified in story. *Anything* can feel justified with the right writing, since writers get to stack the decks. It's a question of whether it's the best idea to do a story justifying such behavior.

If you do a story about how the victims in the Salem witch trials really secretly were evil demonesses, you've just created a situation that justifies the witch trials. But maybe don't do a story like that?

Of all the stories in the world one could tell, why do one that shows how the Welsh-based hero is actually a terrible king so putting an Englisher-than-English Braddock on his throne is a good thing that's well and truly justified, actually?