You can’t dismiss an entire field. There are things that evolutionary psychology can probably help explain. Our psychology IS influenced by evolution. There are hard limits in there. The most blandly obvious example is the limit on how many people we can individually recognize. The upper limit to how many individual people we can toss into our “in” group is pretty damn important in shaping how our societies are built. Culture and individual aptitude might shift that number around from person to person, but there are functional upper limits, and they matter a lot.
That said, evolutionary psychology needs to walk on egg shells. Culture is such a dominate force and the cultural labs we have to pick apart nature and culture are extremely homogeneous. Just because you find a trait across all human cultures doesn’t mean it isn’t culture. It could just mean it is an extremely virulent piece of culture. There is nothing wrong with postulating that some piece of psychology has evolutionary roots, you just need to set the burden of proof very high before you accept the hypothesis.
