One might think that the importance of self-reliance with respect to essential resources is something to be learned from the past years. So, I'm not sure it's such a great idea to harm our local food production and import via the Atlantic ocean instead.
I did not crunch any numbers but I do think self-reliance with a high standard of living that means wanting and having access to everything from produce to luxury goods at a reasonable price for the majority of people cannot be achieved so easily.
You of course say self reliance on essential resources and I still think for most countries that could be very expensive very fast. People are complaining about the high costs specifically of the essential products when their prices are raising. Without a serious rethinking of our society we cannot probably fix that. And nobody is willing now to vote and agree to suffer for a generation to fix this system.
'Self-reliance' is an emotional appeal by nationalists to roll back free trade and other international cooperation.
International cooperation brings great wealth and security, and a diversification of resources. Should each EU country also go it alone? Internationalists have built the most free, prosperous, and secure world that has ever been seen. It's hard to see how the recent nationalist, anti-trade governments have improved things for themselves or for the world.
