Polygamy creates a male absent, weak household.
Sons are soon banished seeking women outside in greater society.
Uncles are banished because few women exist.
Otherwise the sons & uncles must turn homosexual.
The multiple brides also turn homosexual.
What good are sons who are turned gay? They are value less.
It only succeeded in old Mormon country where a single male controlled a lot of land.
Polygamy is family abuse of its weak, brain washed members.
Or become cannon fodder, or bring in foreign women as wives, whether voluntarily or otherwise, which simply exports the problem.
So does divorce, more often than not.