Buddhism is a rebellion against natural selection in two main ways. First, Buddhism wants us to see the world accurately, as it is, all the time. Second, Buddhism believes that if we are able to do that we can actually be at peace, can end our suffering. Natural selection, however, developed over millennia through evolution, does NOT want us to see the world accurately all the time or with complete clarity and wants us to suffer sometimes. This is a fundamental difference between Buddhism and what evolutionary psychology tells us natural selection has chosen for us.
Natural selection allows for us to lie to ourselves, to see ourselves more positively than we really are. We hold certain delusions about who we are that make us feel good about ourselves, even though they're not accurate, and allow us to go forth and struggle in the world. Without that delusion of our innate "goodness" evolutionary psychology predicts that we would not fight as hard or as long for the things that matter to us. Nor would we feel as self-righteous in our judgment of others if we truly saw the flaws in ourselves. Natural selection
does want us to experience some suffering. It is counter intuitive to imagine that our evolutionary past has deemed that some amount of suffering is necessary for the survival of the species, but on reflection of what it takes to survive and to pass on one's genes (which is the ultimate goal of evolution) suffering makes us act in the world to change something that is harming us, bothering us, impeding us, or preventing us from doing something. Without the necessity of suffering, humans would be more complacent, less likely to seek change in their environment, or in their social group, or even in themselves.
