Will you correct this for grammatical errors?

(While most oversimplify murderous dictators as vermin,) <-Change that. Comparing the oversimplification of the characters of murderous dictators as though they were vermin sounds too informal. Hitler and Stalin led fascinating lives that were respectively intricate though vastly different, each (begetting) <-go back to the thesaurus and use a simpler word. radical and arguably justified personal beliefs and political tactics.