Merc,

I'm just sayin' that there are a few assumptions you seem to have made that are wrong in my mind, even if one can be argued by one ethnicity's voting trend.

1. Black people aren't the only ones who are ardent supporters of Obama.

2. Black people aren't the only people who kinda hate Hillary.

3. Black people aren't the only people who riot.

I do understand how the primary system works, and that superdelegates can, within party rules, render months of populace primaries and caucuses irrelevant. I also understand that it is exactly that kind of approach to governmental representation that has so many people upset with our state of the union. And, to throw another point in there sans-research, I'm willing to bet that the best indicator of "willingness to publicly protest" isn't skin-pigmentation, it's more likely to be AGE group.