To that, I say, how convenient it is that you've just turned off the critical reasoning process in your brain for just this issue. Thanks for completely ignoring the history of racial subjugation and discrimination in this country and in the world.

That's not what racism is. And don't bother digging up the 4th definition in some random online dictionary as your "proof". Dictionaries chronicle common usage, they are not the arbiters of meaning. One can understand the meaning of a word by comprehending its usage in culture and literature over the span of many decades. Once you do that you won't be able to claim that racism is "treating races differently".