I think you're right, and that this explains the pattern of low voter turnout in minority communities -- well, the black one, anyway.
Racial solidarity and the pressure from black leadership (who are NOT the TV hounds we see, but actual neighborhood people nobody ever hears about until they die, and then readers marvel at the testimonials given some black barber, union shop steward, meatcutter, or beauty-shop proprietress) work to compel the 95% straight-ticket voting in the black community.
The pressure is strong, and I think (IMHO) that the alternative to capitulation is not voting, which is how black people who disagree with the leadership register their dissent.
Years ago I moved into a very rough neighborhood with my combat veteran husband, because I predicted the real estate values would improve. Every week we could hear gunshots in the alley. We called the police every time. We had a community advisory committee that met at precinct headquarters monthly. We formed a block club that met monthly in different people’s houses. The neighborhood had new young white people buying bargains and older black people who were sick of the influx of crime and we worked together. We invited the police to send a community outreach person. Before the MLK assassination the local crime was bootlegging (after hours liquor), and prostitution. After the MLK riots, the crime was robbery and dope dealing. It took about 10 years to turn things around.
There is definitely a thug underclass in the black population that unfortunately runs too many poor communities and is tolerated by decent black people (although probably in part out of fear).
However, look at the photos of this “black protest.” A huge number of the people I see in it are young whites who have that Occupy or college leftist look, combined with well-dressed older black people, particularly women, who are most certainly not from the ‘hood and are probably all college professors, community organizers, or employed in some other job that gives them the leisure to hang out all night spitting at the police.
Obama is trying very hard to form blacks into a weapon to use against older whites (as well as against Asians and even hard-working Hispanics, who are frequently the victims of black crime), because he has built his power on his portrayal of himself as the leader and avenger of the American black population, despite the fact that he himself is not only not entirely black but not even of African-American descent. So it is very important to him to keep things stirred up and keep this image before their eyes.
I think those of us who are outside of the black population have to be careful not to fall for it, because the us-vs-them model is exactly what he wants.