"Out-Of-Africa" was a result of political correctness, not professional scientific work. During the culture wars of the 1960's this was a backdoor approach to giving ethnic minorities credibility by asserting they were our ancestors and we are simply paler versions of them.
The evidence says this is simply impossible. Always was, always will be. Outside of popular consensus there was never much evidence to support the idea.
If you read this article you will see that what is demonstrated here is that European ancestors were engaged in sophisticated toolmaking, long distance migrations and even boat making back when Africans had barely begun to walk on their hind legs according to the fossil record.
There has always been a wealth of evidence to support "diffusion." It's a theory that was never discredited. It just became politically impossible to propose, which isn't the same as being proven scientifically inaccurate.
The evidence is that human beings spread out from an original location that is still unknown into Europe, Asia and Africa over a million years ago. They then pursued very different evolutionary courses until the genetic bottleneck 80,000 years ago at which time they were further triaged to very small genesis groups. At 40,000 or so years ago there were a series of catastrophic events that wiped out all the different flavors of man, including Neanderthals who were the oldest race of them all, leaving only Homo Sapiens behind. (Unless you count Neanderthal gene expression as Neanderthal survival)
This is what the evidence tells us. Whether or not it is socially acceptable is another story.