The current polarization goes back to the Great Compromise of 1986, as consequential (and as dangerous) as those of 1820 and 1850.
The Great Compromise between Reagan and Tip O’Neill was that the Republicans could cut taxes (and claim credit in productive districts) as much as they wanted, and the Democrats could borrow money to give away (and claim credit in parasite districts) as much as THEY wanted.
This couldn’t last, of course, because no nation can endure half slave and half free. What the Reagan-O’Neill compromise has produced is a massive migration of producers to so-called “red” states, and a corresponding migration (augmented by immigration) of parasites to “blue” states, to the point that the parasites are now geographically concentrated enough to control the Senate and to have a near-lock on the Electoral College.
Destroying the money system is only ONE of the consequences of this 1986 compromise, and not the worst.
It is the use of our decaying republican institutions to enslave producers to parasites that means we are headed for war, just as much as the Compromise of 1850 dictated the outcome of Dred Scott v. Sanford and pushed the nation to war.
As soon as Obama appoints 2 or 3 more Supreme Court Justices, and they proclaim that “no producer has any rights to property or income that a parasite is bound to respect”, the fat will be in the fire.
Some folks like summertime weather all year long but they don't like to suffer through the 130 degree hotspots.
BTW, my explanation for the migration ~ air conditioning ~ is the least complex.