But a) Bosch doesn't hate Vasudans and b) he mourned the fact that he would be remembered as a butcher of "innocents".
Actually, I wouldn't be so sure about a). He says "What my enemies will never understand is that my rebellion is about my love for humanity and not my hatred of Vasudans"; which doesn't mean he doesn't actually hate Vasudans, just that it's not his driving force.
"I alone realised our species had no future with the Vasudans." also to me indicates that he sees the Vasudans as either a lesser race, or a handicap. He certainly doesn't
like them, that's for sure.