"We" will never reach the breaking point because "we" are so hopelessly divided.
Suppose the next one hundred people you encounter in day to day life are found to be "mad as hell, and not going to take it anymore!" What course of action is next? What will you do?
EDIT: I would suggest that those who fear for the worst abandon lending an ear to the talking heads on both sides of the isle and get to the meat of the matter.
Research resilient communities, and perhaps visit globalguerillas.com. (Not as radical as it sounds, just good info.)
You will not survive in the fantasy land of the "lone survior" tucked away in a fortified warehouse. You will need others.
Build those relationships yesterday.

