Of course you want people to understand, but it's not going to come from a medium that is purposefully hyperbolic and idealized. Where there is a monolithic, absolutely evil empire that is cruel and absolutely "the bad guy." To compare the contemporary civil rights struggle to that condition necessarily trivializes the issue to a good versus bad state, removing the precise context which makes this situation so frustrating. No one can truly understand this problem unless they understand the underlying issue.
The reason people love a revolution story is because it's easy to self insert. To root for the underdog. And because the heroes do cool, impossible things. But to many white Americans, black people aren't the underdog. Blacks, at the height of tensions, are considered the other. The enemy. At the kindest allowances of this comparison, these roles are diametrically opposed to what folks go to see Star Wars, and many of these romanticized revolution movies, for. So the link isn't there in that respect, either.