Weird rabbithole.
Confederate soldiers start a band after the war. Building behind them is a theater where they developed the idea (naturally) of Scot romanticising (we waz clan chiefs) then Dixon makes books about it, birth of a nation is based on that.
Over simplification.
Root of the story is that hillbilly rap will usher in the wu wux wlan.
Should have just let them play their and larp.