Tribalism it has certainly become - we labeled it so on FR some years ago - and Steyn is perfectly correct in pointing the finger leftward. There is a nihilistic element in it as there is in so much of leftwing politics today - where there is no truth, the only terms of contention that matter are brute power and the ability to silence the opposition. This is caveman politics, apologies in advance to any cavemen out there who are offended.
Modern political systems are constructed to avoid this sort of brute contention, not stimulate it. We are dealing with primitives here. To paraphrase Al Capone, one gets more with reason and a ballbat than one does with reason alone.
Liberal democrats believe entirely on diversity, equality, and tolerance.....*mmmghhhhiimmmmddddkkkkhhhh*
(I’m sorry...I got choked from laughing so hard at my own comment...)