I think most people (even some African Americans) hate the trashy, ghetto, no-class Africans. The ones who show their butt cracks, thongs or underwear, are obnoxiously loud, and blatantly ignorant. Just like many people hate stupid, racist rednecks or super clique-y Asians who don't mingle outside of their ethnicity.
The media plays a big role in it as well. Where I'm from, it's pretty urban and the media shows African Americans committing about 90% of the violent or aggressive crimes so some people get the impression that African Americans are prone to committing crimes and behaving aggressively.
If you are expecting a good reason.. There aren't any. There are going to always be people that will hate you for some stupid reason. But you need to realize that just because some...or even many may be that way..does not mean everyone will be that way.
Obviously the one girl may not have had a problem with the guy being part Jamaican..Did she say she thought it was bad..or did you just overhear her friend say it?
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.