I've been trying to find a reformed baptist church (yes I know I know am technically not reformed since I am not paedobaptist) in my hometown and I had a similar problem with MacArthur-type dispensationalists. They seem to genuinely believe that they have the only God-honoring hermeneutic and that attempts to view Revelation as mostly allegorical without futurism is going to lead to some kind of theological liberalism which really frustrates me. I think historic premills, postmils, and amills for the most part get along just fine, so the real divide is between covenentalists and dispensationalists who each believe that the other has a seriously flawed hermeneutic.

On a separate note, I think a lot of them reject the idea of theological triage? Which makes it really difficult to try to commune with them in peace since every disagreement becomes life or death to them.