You say People stupid => survival is luck, he says Survival => people not stupid. Throwing more arguments at each other won't resolve anything- your argument

You say People stupid => survival is luck, he says Survival => people not stupid. Throwing more arguments at each other won't resolve anything- your arguments are both internally consistent, but they run opposite to each other. You can't refute one just by saying the other, they're rooted different axiomatic takes on the same dataset. You have to attack the axioms.