Im not sure if the guy who declared "the end of history" in the 90s is really best poised to comment on this. The deep, societal rot that set this polarization in motion essentially kicked off shortly before he famously declared western civilization to be akin to perfection.
It seems pretty clear from this essay that he thinks that polarization is a surface level issue best dealt with by tweaking "how we talk to each other" across the political divide rather than addressing the underlying structural issues that indirectly trigger a deep level of anger and resentment like staggering wealth inequality.
It seems pretty clear from this essay that he thinks that polarization is a surface level issue best dealt with by tweaking "how we talk to each other" across the political divide rather than addressing the underlying structural issues that indirectly trigger a deep level of anger and resentment like staggering wealth inequality.