Overpopulation as a cure for healthcare

Something interesting occured to me recently. Evolution of the human species has been basically halted by healthcare. Since the weak no longer die before reproducing, the makeup of the genes of subsequent generations is random. The good news is the cure needs no effort as such. If we let the population grow until we no longer have enough food then people will start dying more. The people who manage to survive will pass on their genes and evolution will begin again. The only question remains is whether the survivors are the sort of people we want continuing the species. They will predominantly be the rich and although many rich people get that way by being smart or more productive somehow, some of them definitely don’t. starvation, evolution, over population