At some level, the Humean doubts about the illogic of induction have to give way, and you make assumptions you cannot justify. If you listen to talk radio, everyone has a really strong opinion, but it gets you thinking, sets up an argument to critique. We make decisions based on assumptions and theories, and these are all suspect, but I think without some decisiveness that could be called overconfidence, we would be catatonic.
btw: do they even have Goofus and Gallant any more? I would think highlighting evil Goofus would be blaming the victim.
To the extent one can induce one to empathize, cooperating is optimal. The repeated game does this by having them play again and again, and thus be able to realize gains from trade. You assert there’s something hard wired. I suppose there are experiments that could distinguish between the two models, ie, rational self interest in repeated games, versus the intrinsic empathy function.