Western culture is historically white, but that doesn’t make it either exclusive or a bad thing. It beats what passes for “civilisation” in any majority-black-run polity. Exhibit A, South Africa, which, even handed a fully-functioning society (built by whites on the lines of most western societies), could not maintain it.
The predominate skin color of adherents to a culture is incidental and not causal.
Like everyone is saying, Western culture doesn’t exclude people based on skin color,
it’s those of the skin color/tribe that are rejected the Western value system.
IN 20/20 hindsight, once a large population had been sinned against by slavery, they did need help, but it was not so much worldly things as it was gospel. Democrats who could no longer enslave them, walled them off socially instead (hence Jim Crow and much 2nd Amendment infringement). Wrong, bad move. It would have been panned unmercifully by any of the bible writers, let alone God.
Could not, or WOULD not?