Well, that explains a lot!
This article must be the precursor in explaining how the gay lifestyle helped to propagate and spread the species.
Makes total sense!
< /sarc >
A more reasonable scenario is that the hunters explored outward, came back, a few dragged mates and daughters into the new territory, and the men coming to the new lands competed for the wives and daughters that had been there for years over trying to bring new women to the new land.
Like the one trapper who brings a wife, then has all the new AND old trappers fighting over his daughters - instead of trying to go to the old land, convince women to come, and drag new women in.
It might explain why 1-4% of human DNA is attributed to Neandertals; the majority of men were lonely enough to at least try it, and a number of fertile hybrids resulted even if we were nearly separate species.