No, that's not quite my point. First of all, the danger isn't exactly in the rise of fascism and genocide. That's just how Germany happened to collapse, based on lots of circumstances at the time.

But secondly, the danger isn't in secular modernity itself, but in the spreading of unvarnished versions of secular, scientific truth to the middle class, which undermines humanism and liberal values, creating a meaning crisis that fascists or other demagogues could resolve. This is the problem that Leo Strauss wrestled with.