>I’m guessing we’re going to ignore hundreds of major riots and mass-marches… But yes, Northern Whites and their philosophy did push it through Congress.

Marches mean nothing when you don't have the guns to make it work. Selma was a tactical disaster, for example. What it did was draw support from people with guns who would otherwise not have been sympathetic.

>There is a right side of history: The side that won.

The side that won so far. There is no permanent victory. It's entirely possible that in 200 years, the fall of the nazi regime is discussed as the greatest tragedy ever to befall mankind.