Killing entire populations just for living somewhere he wanted his people rises an insane level of asshole dickish douchbaggery.
The Torah depicts God allowing the Israelites to conquer surrounding nations by war. The Bronze Age is riddled with wars and skirmishes. The less knowledge we have the more violent we are. The Bible says God chose the righteous genetic traits of Abram who was a great warrior who won many battles. I find it odd that you use such descriptive insults to an entity that you believe doesn't exist in any way. Critisize Israel for the murders, not God if you are an atheist. If God did it then there is reason to beleive morality was involved in the decision. If God doesn't exist it was just par for the course in the Bronze (swords) Age.
-Sab