Need Help: Those People

I'll make the art a little more interesting, but I'm looking for assistance on the text. Does it make sense? Should I rearrange it/rephrase it for better impact? You're supposed to start off thinking that I'm talking about blacks or gays or some other "other."

I'm especially concerned about how best to word the final panel for most "hit you over the head" result. I'm worried that it isn't quite clear (or rather that you have to think about it too much to understand).