Just please watch out: the polarization you see on the internet (no matter where you see it) is rarely a reflection of the face-to-face reality. There is much more kindness and tolerance when people are face to face. Always has been.
The danger, the reason I point this out, is that when people see too much of it on the internet they start to lose faith in humanity, and they start projecting that world view on to the face to face interactions.