True, but even though I would certainly not want to be in a polygamous marriage, there’s no reason for me (or others who do not personally want to be in polygamous relationships) to exert control over those who *do* want to have a polygamous marriage. My only condition for “legalizing” it would be that ALL parties have to willingly consent to it.
Quite frankly, I think outright polygamy is often more humane than (legal) serial polygamy where spouses completely abandon previous wives/husbands and kids via divorce.
