“Local political situations will become very fluid with some regions coming under the control of warlords who aren’t very constitutional minded. There will be a lot of violence, a lot of misery and a lot of death.”
And these are the cold hard facts! A small organized group wanting what you have will take it. You can’t tend crops because you would expose yourself, your generators will be disabled, your fuel sources destroyed. You won’t even be able to stick your head above ground! They will have the advantage from start to finish. A single family unit is helpless against this and history has proven it time and time again. An attacking party can bring in resources from the outside, the defending party is limited by why what they have on hand.
No doubt at the beginning, there will be turmoil and death.
But it will soon run out.
At least in terms of “wandering marauders” or whatever... the lifespan of a typical “wandering marauder” can be measured in weeks... or even days.