You're the one who made the claim. If your idea can't handle the "absurd extremes" then your idea is wrong. Frankly, religious beliefs that include intolerance

You're the one who made the claim. If your idea can't handle the "absurd extremes" then your idea is wrong. Frankly, religious beliefs that include intolerance of other religious beliefs are empirically the rule, rather than the exception, and you don't need to be a mathematician to figure out how that throws a wrench in your characterization.