The root cause of Polarization is interruption, and this has to be cut down by a full determination to understand each other and promise to:

Research shows that even the best listeners of the world, professional listeners like teachers, therapists, counsellors, coaches, listen only for about 11 seconds at a time.

Interrupting humans were already doing a great job, but now the act is multifold, with the digital devices turning people into loud zombies who sometimes are impossible to talk to.