Not really.

People are killing each other in order to obtain or preserve power over the masses and to shape society and harness resources as they see fit.

Hitler did it. Mao did it. Stalin did it. Lincoln did it. Pol Pot did it. So did Ivan the Terrible. The native tribes of North America did it. The British did it all over the world. 

The "trample on other" instinct is very powerful in humans and transcends religious beliefs. That is how you have Christian whites in the southern USA slaughtering Christian blacks in the southern USA, and how you have castes in India of the same religion trampling upon one another, that is how you had the north and south in the American civil war having the same religion.

People kill each other in order to obtain or preserve power over the masses and to shape society and harness resources as they see fit. That "trample on other" instinct is actually the core and key problem, not the matter of whether others worship trees or have darker skin.