Isn't that opposite. If all humans are equal, and one group wins, then it was either external factors or luck. But if it is not luck or external reasons, then

Isn't that opposite. If all humans are equal, and one group wins, then it was either external factors or luck. But if it is not luck or external reasons, then isn't that racist, because now you are saying Europeans are somehow genetically different (better), or have a better culture, and that is what caused their success? I think you are mixing possible reasons. There are non-racist reasons.