You cannot cease polarization without inspiring people to actually think and question their beliefs. The binary I will subscribe to is that of individualist vs. collectivist (which I typically conflate with communism and capitalism colloquially), for these are the fundamental positions that seed the rest of your belief structure. Neither the "left" nor the "right" have truly individualist mentalities, though I would, perhaps due to bias, argue the right leans more individual.

The polarization is nothing new and I honestly can't get on board with this cyclical theory of rage. Everyone tries to say everything is a cycle, but the thing about cycles is that, if you visualize them as waves, there is constructive and destructive interference, and of course it's uncontested that the cycle may modify slowly over time. So whether or not this cycle is an accurate depiction of societal behavior is irrelevant, because the millions of other cycles that sociologists have attempted to classify, and the intervention of a massively organized coercive state would offset and modify the outcome in ways that would reduce the concept to mere guesswork.

By the way, I also recommend reading "Against Intellectual Property" by Kinsella if you haven't.