The founding fathers would have been happy to debate you on the existence of God, or anything else; and they they would have been quite comfortable communicating on a rational basis.
But the post-structuralists, who by the way dominate our educational system, are brilliant at turning logic on its ear. Without logic, intelligent men have no purpose. While the uber post-structuralists make the case that their reasoning does not neglect logic, they represent an infinitesimal minority of those who use it. Its frequent companion is Marxism, and they complement one another well.
What you're describing - post structuralism - is actually a kind of cult. A belief system to which people swear fealty, but cannot be explained rationally, nor understood intelligently. Unless the cult beliefs are accepted first, as a kind of background.
That's why they hate conservatives. We're apostate heretics. Even though we're not monolithic.