I always knew, intuitively, that I was not descended from African stock.
I've read studies that say all humans originated in Africa, some say that other populations rose outside of Africa. Some say Neanderthal breeding with European populations of early man led to further genetic mutations distinguishing them significantly (and for the better) from populations that did not leave Africa.
I think the trend now is that there is no such thing as "race."
I don't understand what studies might be slanted because of a desire to separate from African origin, and which may be truth that is being deliberately downplayed because some scholars don't want non-Africa origins.
Even more unsettling is that both seem to be flatly stated as "truth" without regard to other possibilities.