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.