Calling somebody like me a whiteboy is worse than calling me a Dego, Wop, or Greaser. I'm aware when somebody says "Hey whiteboy", they aren't trying to be my friend...they are trying to be a dick...and it's all in the context folks say it. It's not used as a term of endearment. It's usually "Fuckin' whiteboy"...or "You won't believe this shit...this whiteboy....."
And about the last part, you don't speak for all black folks my dude. A lot of my boys have good jobs, houses, families. My business partner is always telling me, "Damn, you really are black". He can't believe some of the shit I've been through when dealing with cops, and how regular folks treat me when we're out somewhere. I'm not a victim, but the shit is relative on where and how you grew up. My business partner is black and from L.A. and hasn't gone through nearly as much bullshit as I have.