So where exactly were these food shortage that you lived through? Unless you are ex Yugoslavia, TransDniester or Armenia/Azerbaijan regions and even then we are talking a few years max. During each episode while the shooting was going on. Even several South American and Central American countries back in the 1980’s and 1990’s when the shooting got really intense it was never ten years. Including the areas controlled by the Shining Path. This was local news were I lived at the time. As there were so many refugees who were settled locally.
The only time I ever saw empty shelves was while traveling through Eastern Europe in the 1980’s. It was Communism that emptied the shelves, not any wider civil collapse that is relevant to doing disaster prep. Funny how empty shelves in South America was also due to Marxist governments as well.
So your story sounds like BS to me. I’ve been doing disaster prep for decades because I had to. And lived though a bunch of them. You sound like you have nt a clue how to do the practical stuff. The stuff that will get you through any potential disaster. You also sound like a townie. Anyone who grew up around farming and knows exactly whats involved dont indulge in "prepper fantasies"like yours. For a start people who actually have shoveled cowshit dont talk about drinking out of streams. We know were to look for clean water wells etc. Its very basic simple stuff like this that will kill townies who have read too many fantasy prepper books of “living off the land”.