For those people who claim that evolutionary psychology isn't predictive:

These data show that children living with one genetic parent and one stepparent are roughly forty times more likely to be physically abused than children living with both parents.This greater risk rate occurs even when other factors such as poverty and socioeconomic status are controlled. Daly and Wilson concluded that "step-parenthood per se remains the single most powerful risk factor for child abuse that has yet been identified".... Some people, of course, might claim that such findings are "obvious" or that "anyone could have predicted them." Perhaps so. But the fact remains that hundreds of previous studies of child abuse failed to identify step-parents as a risk factor for child abuse until Daly and Wilson approached the problem with an evolutionary lens.

Buss (2008). Evolutionary Psychology: The New Science of Mind (3rd ed.). Prentice Hall. 7. 211-12

And of course, there are many similar examples throughout the book. I literally just opened it to a random page, and found that example.

At some point, the refrain of "Non-predictive! Just-so story! It's a pseudoscience!" starts to look like motivated cognition.