All we can do is make sure we have our own personal world ready for such so we don’t need the outside world for a decent standard of living for a period of time.
God gave us a brain, we have to use it.
Prepare long term, be able to replensish and/or repair your supplies, and stay out of the cities is the only way to have a shot at survival. JMHO.
When the 60’s riots erupted, most of the rural areas in America did not participate. I am not sure that will hold true this time around.