I'm just focusing here on these two kinds of atheism. There are always different ways of analyzing something.

What I said about humanism isn't that it leads to authoritarianism, but that it's vulnerable to the global populist counterattack. I'm saying humanistic values are opposed to alt-right neofascism, but that the latter is currently winning against the former in many countries.

Roughly, I take humanism to be pride in our nature and confidence in our potential to progress in secular terms, when we're given the freedom to express ourselves and to rationally organize our efforts.