From the looks of it it takes another civil war, where the less barbaric people remove the more barbaric people from power. Unfortunately i am afraid that nothing short of that will work, as the system is so unstanle that things like this can happen.
All a civil war will do is put a bigger boot on all our necks.
Nobody rational wants to see that happen.
Unless you enjoy the thought of American military might amped up to 11 and deployed on it’s own citizens.
The US military putting racist authoritarian southern states into order seems like a fairly okay alternative to people constantly being supressed, denies their democratic rights and often being outright murdered without any consequences for the perpetuators.
As you mention the might of the US military that could also mean the issues to be resolved within a short time and without much bloodshed, as the local cop gang probably is made up of pussy posers that only attack the weak.