Darwinism hasn’t quite reached it’s end goal yet, one can only surmise.
“Darwinism” has no “end goal”.
It’s not even darwin-ism. It can’t be.
No one is going through natural selection because of an extra artery in their fore-arm. No one is surviving better because of it and no one is having more babies because of it. It probably has more to do with change in the diet and nutrition of mothers during pregnancy over the last several centuries.