I think this could pretty fairly be expanded to Christian fundamentalists, religious fundamentalists in general, or really any overarching philosophies or beliefs that are interpreted in an extreme and/or uncompromising way. I don't think you need to read their sacred texts and make an untrained judgment on how well a particular fundamentalist's beliefs conform to scripture to determine whether those beliefs are compatible with participating in a healthy, modern society. In fact, while a less extreme reading of those texts may give a generally positive message, I think trying to make such comparisons presumes infallible goodness of that message and hinders valid critiques of "reasonable" interpretations that ought not stand up to modern scrutiny.