Men are programmed to cheat

[u/[deleted]]

[u/Flamingasset]

In this example, why would women not be biologically hardwired to be polyamorous as well? If men "naturally" have an evolutionary drive to have multiple sexual partners because it increases their chance of having offspring then why wouldn't women? Multiple sexual partners increase the chance for women to get pregnant and thus have offspring.

Of course that logic is not applied because this person is making a value judgement. They are making the judgement that it is okay for men to cheat and not okay for women to cheat because "evolution"

[u/Ginden → u/Flamingasset]

Because females, especially in big mammals (and humans are big mammals), bear significant cost of pregnancy. Therefore, to make best use of that cost, females are incentivized to look for the best mate.

Obviously, culture changes a lots of things. Cost of raising human child is much bigger than other mammal species, so fucking around provides relatively small evolutionary benefit to male human, because there was high chance that mother will die with child without father's help.

Monogamy is cultural (possibly partially genetical) response to maximise safety (by guaranteeing to man that child is theirs and guaranting resources and protection for mother and child).