Evolutionary psychology gives you stories. Sometimes those stories are helpful and sometimes they aren't.
There are three big forces in human evolution: Natural selection, Gene drift and mutations.
Evolutionary psychology asserts that any phenotype we see exists primarily because of natural selection.
Evolutionary psychology doesn't take into account that there is natural selection of genes instead of natural selection of behavior.
One gene can create many different behaviors and some of those might be evolutionary advantageous while others might be evolutionary disadvantageous.
Pop evolutionary psychology doesn't take into account the massive differences between the environment in which we evolved for millions of years and todays environment.
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Well, evo psych is a useful tool and is self evidently true in theory.
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No, it isn't.
Sometimes it works and sometimes it doesn't, just as good theory would predict.