Similarly, for his loyalty and authority questions. Furthermore, a large part of the identity of modern liberals (especially non-hippie liberals in the case of sacredness) is that they're above such old fashioned things as tribalism, superstition, and blind obedience thus they tend to have a blind spot for the places where they engage in these things.

I agree that this is a really acute and progress-blocking problem for liberals (some more radical leftists, e.g. Zizek, are at least more reflexive about these things). However, as I was saying before, what really unnerves me is the alt-right variant of this very meme, which is, if possible, even more proud and blinded. Just see any typical blogging fan of Moldbug, especially one talking about pragmatism, "ideology-free" approaches to social studies, Austrian economics and such. That's the vibe I get from this crowd.

Also, it's the key reason for my tolerance of mainstream conservatism despite my numerous disagreements with it, as IMO it scores better than the alternatives on this problem.