I'm an economics professor in one of the few departments where people specialize in Austrian economics, and after years of exposure to them: I still don't understand what they are claiming. Of course each person ends up with many specific beliefs, and many of those beliefs are correlated with being in that group. But that is not the same as core claims that they share because they are in that group.

If I can't understand someone's claims, and I'm not sure they even have clear claims, then I can't exactly say they are wrong. In contrast, theism does make relatively understandable claims.