There are many, many people who are not happy with the status quo, and they are looking for others who share their opinion. And since the media and the social networks are actively working on deciding who's opinion gets amplified, and who gets memory-holed, the people disagreeing with the mainstream agenda will have no choice but to join existing opposing organizations and adopt some of their views, even if they don't fully agree with them.
That's polarization of the society happening in front of our eyes.