Day 11: What’s the stupidest argument or comment you’ve heard about non-monogamy?

That men are meant to have multiple partners because they make lots of sperm and women are meant to be monogamous because they make a limited number of eggs.

So, men with low sperm counts are meant to be monogamous?  Or women who produce sperm are meant to be non-monogamous?  Or people who are sterile should not never have relationships?  Letting gametes dictate relationship styles makes no sense.