You can’t fix the failings of the human heart. The only way would be to set up a shadow government that keeps the real government in line, harshly. But even it could be corrupted over time.
I say let Cloward-Piven have their collapse, then snatch victory from them. Take control by any means necessary, and rebuild a free society, and this time become intolerant of leftist ideas.
Yours may be the best plan.