I can tell you what it means.
It means the entire country must be unfounded, then re-founded by them and ruled by them.
Thought that was ‘fundamentally changing America’ - tearing the system down one brick at a time, street by street, block by block, city by city so that they can reform or reshape it as they see fit.
Oh wait, ANTIFA, BLM, etc., etc. have been doing such the last 6+ days, street by street, block by block, city by city.