I'm not as worried about the food production stuff as some others. It hasn't been profitable to make market gardening or small scale farming a viable career for a long time for most people. Because of that we haven't seen as much focus on local farming as we need. Yet. We all know that's going to start changing rapidly soon.

A single person can grow loads of potatoes in a pretty small area. My only issue, especially for other leftists is that the skills to do so might take you a few seasons to acquire. So get out there and start growing. If you haven't yet, it's kind of a bad time in North America, but read up on it this winter and try to grow some taters starting next spring. Use containers or whatever you can get your hands on for your context.

I don't know that we'll start starving anytime soon, but I think the cost of everything will make life unbearable, and when it does, people will suddenly discover their green thumbs like in the old days.