You are using circular reasoning to get those dates.
Well if one is going to use the dates one should at least be in the ballpark of the dates being used.
Six million years is around the estimated time of common ancestry with chimpanzees, not the emergence of modern humans.
Care to address how the author characterized the Y chromosome as a slow changing part of the genome rather than correctly identifying it as the fastest changing part of the genome? Is getting basic facts bass ackwards circular reasoning as well?