I wonder if it's not a problem with compartmentalization? Because in many contexts, these issues about truth needn't be in the forefront. In contexts where issues about truth are at the forefront, wherever people are having intellectual discussions are making decisions, it is often more contextually appropriate to be argumentative.

Maybe your concern about intolerance is a warning that you need more interactions of the former type for a better balance in your life. That is, interactions that are social and comfortable and bring back your sense of humor and comradery towards other people.