Humans are socialistic within the scope of the newborn family, and that's right and appropriate for the survival of one's offspring, but the human species will not thrive if the most fit and/or intelligent are not allowed to become wealthier and propagate their genes faster, and instead are forced to forfeit their wealth in order to subsidize the reproduction of the weaker and less responsible and productive specimens.

Before you accuse me of wanting to kill off the poor (but I don't think you would go there) I mean that I oppose literal violence being used to extort wealth from the rich in order to subsidize arbitrarily chosen recipients.