From the anthropological
point of view, we have no way of saying what moral
superiority is. We could say that under certain circumstances a
certain moral system is more conducive to survival or to population
increase or to military prowess or political stability or whatever. In that sense, we could
say that one system is superior.
But we cannot go beyond these hypotheticals and say that polygamy
is morally superior in a categorical sense. We simply have no method
for determining whether that is true.
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