This assumes acceptance of a few premises that are not stated, significantly, that "all of group X disregards all opposing arguments as [a priori] irrational".

This assumes acceptance of a few premises that are not stated, significantly, that "all of group X disregards all opposing arguments as [a priori] irrational". I reject that premise holds true for all X. I am always suspicious, initially, of either/or questions. They are frequently "loaded" in such a way.