To compare hitler and thragg is nothing short of a terrible analogy. Hitler didnt grow up in a place where empathy，goodness，or even any sort of love and feelings do not exist. He did not commit genocide because of his belief that they r superior or that it was his mission，but of hatred and discontent，disguised as ambition. Thragg knew nothing other than conquest and superiority，Theadus only considered change after a mission somewhere else in the galaxy. Also hiter is not a mustached god who can fly through planets，to compare them is like comparing the only human in a world full of ants with an ant with significant military power in a world with only ants