Here's a thought: anger cannot sustain a system indefinitely.
It's very much like anaerobic respiration.
There is clearly a fresh wellspring of hostile, toxic energy since Covid. But no matter the scale and scope of it, it can't power everything (or indeed anything) forever. Eventually a new source of energy must be found.
A lot of political will currently hinges on anger, hostility and aggression. Anger fuels things for a (surprisingly) long time. But it is eventually, inevitably depleted.