I think a two skilled riffers who can avoid being preachy, an African American that is that balance of no BS but also not taking themself personally too seriously and a well-meaning but smart/funny cornfed Midwesterner (cough MIKE cough) could turn this silent movie powder keg into the permission to mock ugly history rather than give platitudes. I know it’s a really tall order and not for the faint of heart, but I’ve seen Mike do this kind of stuff well so if you could get a talented black comedian who “gets” riffing (jfc what am I even saying!) this could be unforgettable!

This would need to have African American riffers.

I understand it's a silent film, so that would give them less to work with, and also given the nature of the film and the modern political climate, i think it would tie the riffers' hands quite a bit at the risk of, for example, having their office in California burnt down by a riotous mob.