Bro made up an idea of her in his head and then got angry and hated her once he realized she didn't match his ideals... what did he expect? Idolizing a stranger and then putting all the responsibility on her for something like this (which while her father was at the forefront of the shit going on doesn't mean he was the only person involved) is ridiculous. Yeah she's part of the family that led it but does the frog in the well think there's anything beyond the sky it can see when it looks up?