What is wrong with theistic beliefs?

[vulcanlogician]

I put "something else." To me, theism (belief in God) is a false belief. But the question asked about theistic beliefs with an "s." A great many true beliefs can be tacked on to a false one. And that is certainly the case with the major world religions.

Was Martin Luther King delusional? Was Gandhi delusional? No. Probably far less delusional than your average person. Did they each have at least one false belief. Yes, probably.