Great analysis of a problem with no real solutions. The only true way out of it would be for "the people" to accept responsibility for what has happened and do a "reboot" of the political system by sacking everyone.

Rebuild from the ground up.

Ha, ha, ha what am I saying. That's the lowest probability outcome. The most likely is some form of authoritarian dictatorship built on White Nationalism. Very much like the one in Alan Moore's classic "V for Vendetta".

Perhaps with a civil war. Perhaps just disintegration. Based on the Climate data, if I lived in the South I would move to Scotland right now. Your odds of being alive in 20 years will be much better.