Certainly Pharaoh had become an arrogant rebel (i.e. a tyrannical despot) in the land and he had divided the citizens of his (state) into (various) sects (and groups). He had oppressed and weakened one of these groups (the population comprising the Children of Israel). He used to kill their sons (to crush their future strength) and let their women live (to increase their number without men and spread immorality and indecency among them). Surely he was one of those who rouse disruption.