And a civil war would result from that ... how?
Let's agree that such a thing would be bad ... albeit highly unlikely as a "normal" event such as what you're describing.
But for it to occur in sufficient volume to incite any sort of organized violent response, would require a number of cases that would far outstrip the capacity of the court system to handle them.
Beyond that, the political fallout from that sort of fly-by-night foreclosure operation would -- as we've already seen -- result in swift political reaction, most likely in the form of a moratorium on foreclosures. Which would also be bad, of course.
In real life, I'm fairly certain we're riding for a nasty financial fall, the consequences of which will be highly unpleasant. I doubt we'll see a civil war springing out of it, though.
I think 'unpleasant' will be putting it mildly. I'm anticipating a nice, rosy glow from the south and west sides of Chicago when all those WIC debit cards finally stop working.
"War" is probably too strong a term for it. Perhaps "sustained civil unrest" would be better.
L