Its true, but it would have been more interesting if they had done this more in depth.
When I was in college, I noticed african americans didn't like african immigrants, and vice versa, even the latinos were divieded (seems mexicans hate folks from central america). Asians, well, take a glimpse at the other side of the globe, they didn't leave those beliefs behind.
I just find it ammusing how they lumped the minorities together, without going further.
I have a friend who is an African immigrant.
He has no use for the AA culture here in America, and fights to keep his son from falling into it.