[AlotOfReading]

Just to be clear about what the term multiregionalism means, it's an argument that there's anatomical continuity between archaic hominin populations around afroeurasia and modern human populations. That is, anatomical modernity didn't evolve once in Africa, but multiple times all over the world in populations that are still extant today. A multiregional hypothesis might say that modern Chinese people evolved from archaic populations in Asia.

This is completely and unequivocally rejected by the genetic evidence. The evidence is so absolutely overwhelming that even fucking Wolpoff came around and now says:

    It is broadly agreed that all recent/living human populations ultimately descend from Africans.

Now, if you mean something completely different to the commonly understood definition of multiregionalism, I'm willing to hear it.