Polarization doesn't help anyone. Both groups are suffering as they retreat further and further into their own in-groups. It sucks and it takes a lot of conscious effort on all parties' part to overcome. And unreciprocated effort feels awful and risks pushing people away at an even faster rate.
I'm not sure we're really equipped, as a society/species to overcome that effort barrier given our current information diet (infinite) and our stupid monkey brains (very limited).