>>112429622She started a civil war and almost got Earth destroyed. ...Except that the war was totally preventable, because her sisters loved her, and everything happened because she got selfish and wanted to stop ruling so she pretended to be an ordinary gem.
Like, any sensible person who understood responsibilities would not have pissed off the Diamonds by pretending to have killed one of them. That is not how you keep Earth from being destroyed.
Oh yeah, and she didn't even bother keeping up with homeworld intelligence. So she had no idea that they had planted a giant Planet Buster in the ground, which is a pretty big thing to miss when YOU'RE SUPPOSED TO BE PROTECTING THE PLANET!
Oh yeah, and also: having a babby that she knew would get herself killed instead of PROTECTING THE PLANET!