Beatrix

[PuPu]

I don't think her progression was unrealistic. For a start, she probably didn't really believe what Brahne said in anger as being genuine. Her loyalty blinded her from reason - until the evidence was undeniable, and that would be expected considering her position.

Which is...exactly why she's stupid with stupid blind loyalty like your typical stupid soldier. And her laughably bad transition to "I'll kill all enemies of Alexandria!" to "Citizens of Burmecia, please forgive me" happened in a matter of seconds over a completely unrelated subject (Garnet), which you can clearly tell is forced and poorly written.

The reason Garnet's unconciousness caused that effect was because up until then there was always a way (albeit unconvincing) to justify Brahne's actions.

...no there wasn't.

But when these actions extended to Garnet - someone who she knew, it become patent that her reasons for genocide were pure fabrications.

The only reason for genocide was "HURR LET'S TEST OUT HOW POWERFUL THESE EIDOLONS ARE BY SEEING HOW MANY PEOPLE THEY CAN KILL" which is hardly justifiable in any way.

She knew first hand of the innocence of Garnet, and so the actions taken against her could only be condemned.

Beatrix knew that Brahne was going to steal her Eidolons. There's no way she couldn't have known that this process alone was incredibly wrong and also an action against Garnet. In either case though, she's still incredibly stupid and ignorant.

This is how real life works. People commit atrocities all the time in the name of their country, it isn't unbelievable that a soldier would kill as told when the enemy is strangers.

The fact that she killed all those people isn't the problem. It's the way that she decided her actions were wrong, that's the problem.

It isn't a huge disbelief that she would refuse to think Brahne would kill Garnet. Her life has been loyalty to the throne.

It is when Brahne specifically told her that she would kill Garnet. Even if she didn't think Brahne would kill Garnet, she still should have known that stealing her Eidolons would cause severe harm to her as well. In either case, whether Beatrix knew or not, she's still incredibly retarded with a poorly written transition to becoming an ally.