Isn't that exactly what we're seeing now? The government has basically been in gridlock since 2010, and voters have increasingly rewarded extreme policians who seek to shift the overton window over compromise politicians who work across party lines to find a middle ground.

The book American Carnage is a fantastic deep dive on this (and extremely fair and even-handed, despite the bombastic title).

>Isn't that exactly what we're seeing now?

If "that" is the cause-effect relationship claimed above, no we are not "seeing" this right now. There is a huge difference between events and the narratives, accurate or otherwise, which some people use to explain those events. The system under consideration is insanely complex, with an immense list of causal factors at play. To me, in my opinion, it's obvious that the causal relationship described above is at best a tiny contributor that is, itself, dependent on other factors also being present. At worst, it's completely wrong and a distraction from understanding the real causes.

This opinion requires a great deal of justification.

Can you be more specific, please? Not all of my comment was mere opinion.