>>857078
Yes, especially in that scenario where there's multiple women involved. If you impregnate somewhere between five to ten women, a low number, you have already succeeded. The only caveat is of course some sort of illness that then wipes out your progeny or a series of unfortunate and comical events. But in essence there would be a kind of vulnerable period until one of your boys is old enough to impregnate further, and incest is very likely to occur. It is in fact inevitable. But within a hundred years there would be a viable though small population of breeding humans.
All races on this planet are at least partially the products of incest in various combinations - mother/son, sister/brother, father/daughter. This is paradoxically what makes humans such a diverse group and also what results in racial differences in both the positive and negative ways. The point is that after the initial bouts of incest there's enough wiggle room for the genes to diversify and avoid generational inbreeding, which in those days tended to involve genociding whichever tribe or clan or family you managed to stumble upon and kidnapping all their women. The incest taboo is also universal, since the memory of deformed or sickly progeny is embedded in our memory very deeply, and our natural instincts.
The abduction and rape portion was remembered in classical history and took on a ritualistic form (meaning, it was merely marriage but with theatrics) and the custom and rituals around it is known in every corner of the Earth, from primitive tribes to more advanced cultures. It was known as an archaic memory of times "from long ago" during the Bronze Age in the Old World.
Also, under the euhemeristic (definitely wrong spelling here) reading of history the gods are merely euhemerized ancestors, meaning that the brother/sister pairing of say Zeus and Hera and so forth is actual incest between an actual brother and sister which at a very remote time established a new people. The incest taboo was however further solidified by religion, meaning that the ancients saw it as something that is done by the gods and which is forbidden to mortal men. This is a rough sketch of a whole theory of religion and so on where the gods are merely kings, chieftains and such from remote antiquity.
The basic point is once you look deep enough into everything human you will find surprising things.