Yup... gonna' be a lot of lib hand-wringing and brow-furrowing goin' on over this.
Nope, their inability to identify a satisfying bad guy to gang up on will keep this from generating the kind of buzz a story like this needs to maintain a national interest. They're not going to want to hear that Indigenous People owned slaves, much less that the still oppressed people of the Original Nation are casting slaves' descendants out in the cold.
They'll ignore this and pretend they didn't hear it.