I would argue that men naturally like polygamy. For that is what Allah has promised in paradise as an incentive.You’re trying to argue that polygyny is not natural for every man and that it was introduced coz of certain factors right?
However, I don't believe polygamy is any more natural than monogamy.
Did you know as Somalis we trace our lineages to a few men and many many female ancestors? What do you think happened to the vast majority of men? Polygamy only happens in a high rate in societies with a lot of war and an underclass of men.