Nice row of straw men. Take that energy invested in straw men arguments and play devils advocate with yourself and start listing things that can go wrong with erratic food supplies and don’t respond until you do.
You can actually live your whole life without most of those other things. Without food and water you’ll perish within a month. Start some serious rolling food shortages and see how fast this country turns to hard core socialism. Put yourself in a famine stricken area with a good population density and watch the hilarity ensue.
Erratic food supplies will not happen if the government gets out of the subsidy business. What it does is artificially increase the prices of food. If you can convince me that subsidies prevent erratic food supplies, I will concede the point.