As I mentioned earlier, I still think the $20 a loaf bread in a hyper-inflation scenario will be the most likely trigger.
401k's, IRA's, guns, and home confiscation will bring about an uprising as never seen before.
Hyper inflation will bring about robberies, burglaries, and other similar crimes, but the major upheaval won't happen until they start to confiscate property. With idiots paying workers $15/hr to flip a burger, it's just a matter of time before more and more people find themselves out of work.
With those two scenarios combined, all hell will break loose. That's when I believe UN troops will be called in to assist with wealth distribution. It's been planned for quite awhile.
As for the $20 loaf a bread; time to buy and freeze breads, and purchase quantities of flour, sugar, wheat, cornmeal, yeast and rice.
It won't last forever, but hopefully it will be enough to get some through a little bit longer.
I don't think I need to mention this, but keep preparing. Guns, ammo, gold silver, food, water (a way to purify water), and personal hygiene items, bandages, medicines.....