We are very close now. Very. At this level of agitation it will take a single spark that drives one side or the other to march. And I am pretty sure it will be the next election cycle.
https://www.quora.com/What-are-the-plausible-scenarios-for-a-new-civil-war-in-the-U-S-How-does-it-start-How-is-it-waged-What-are-the-results