Do not forget that UK was kept from starving by US shipping free food. Without those shipments the outcome of the war would be quite different.
You are ignoring the role of rationing in ensuring that the food that was available was fairly distributed had in; (a) ensuring that no one starved and (b) promoting a genuine "in it together" spirit whereby people got what they needed to survive and fulfil their role in the war economy and/or armed forces and (as far as was realistically possible) eliminating the sense of injustice caused by hoarding and profiteering.
Lend-lease munitions, food and fuel supplies from the US certainly played a crucial role in keeping Britain and the Commonwealth in the ring particularly during the early war years when they were fighting alone but it certainly wasn't "free"! IIRC, in addition to the wholesale transfer of naval bases, radar, aircraft engine (piston and jet) and other technology where Britain was significantly ahead of the US in the early war years, Britain made its last cash payment for US Lend Lease assistance less than a decade ago.
Although largely airbrushed from history during the cold war, Britain's role as a donor of military supplies to the USSR was crucial in turning the tide in 1941-42. They don't appear in Soviet news reel footage showing the Red Army in action but a significant proportion of the tanks and planes defending the gates of Moscow in the winter of 1941-42 were built in British factories (themselves suffering nightly bombardment from the Luftwaffe) and transported to the USSR on perilous Arctic and Mediterranean convoys. Later in the war, the bulk of Canadian tank production went to the USSR and as is more well known, the Red Army and its supplies rode to Berlin in US made trucks.
https://www.researchgate.net/publication/233524251_British_Lend-Lease_Tanks_and_the_Battle_for_Moscow_November-December_1941-A_Research_Note
The lesson I take from all this is that if the world goes mad and degenerates into chaos, rather than pulling up the drawbridge as demanded by the isolationists in the US who opposed Roosevelt's Lend Lease plans, (or sitting on a stockpile of pasta and beans with a shotgun on your lap) and hoping it all passes you by, it is better to get stuck in and share what resources and skills you have with family, friends and neighbours and work together to restore order. I'm not religious but from what I've heard about the guy, I think I know what Jesus would do.
My parents lived through the war, they lived in the central part of Europe. Food shortages, fuel shortages, British and US bombs.
The shortage of food made people eat stuff they did not touch before the war, or since.
One more long lasting psychological effect was ( and is, as they are still alive) that they always had and still have an excessive stock of non perishable goods. Kilos of sugar. Kilos of rice. Just in case.
I completely understand that - you may recall the documentary that the BBC made years ago about Mr Trebus a lovely old guy, originally from Poland whose wartime experiences made him a compulsive hoarder.
https://en.wikipedia.org/wiki/Edmund_Trebus
My point was that although hoarding of food and supplies either in moderate or extreme amounts may be understandable among the generation(s) that grew up during times of genuine hardship, it is the current generation which by comparison has little to fear and access to more food than is good for it that is obsessed with preparing for a zombie apocalypse and similar "end of days" scenarios.
To me the idea of religious groups hoarding food which seems bizarre - surely for the truly devout, a couple of tins of tuna and five packs of crackers should be ample!
And do not forget that any country can turn from a peaceful, democratic heaven on Earth to a totalitarian hell in a very, very short time. Or be in war in even shorter time.
I think most people with a bit of common sense and a reasonable knowledge of current affairs and history can make an objective assessment of the short or longterm risk of the country they are in turning into a "totalitarian hell" or go to war and make appropriate preparations or not as the case may be. FWIW, a few years ago I was in northern Jordan hoping to drive to Turkey via Syria during the early stages of the conflict there and after weighing up the risks decided not to. I've also lived and worked off-grid in a remote corner of an African country where interruptions to fuel, electricity and food supplies were regular occurrences and always made sure that I had enough reserves of essentials. Back in the UK, although I stock up on my favourite breakfast cereal when its on offer, fill up with diesel when its cheap(er) and sometimes succumb to the temptation to buy my own bodyweight in chocolate for a fiver at the Cadbury factory shop (a relative is a Cadbury pensioner so she has privileges
), but otherwise, I'm pretty relaxed about the risks of interruption to essential supplies and services.
Although I remain curious as to his motives and the practicalities of his storage arrangements, I respect Dave's right to stockpile supplies and to be coy about his reasons for doing so I'll get my coat (actually, the very nice shirt, I bought from the OP) and bow out now andy leave the "usual suspects" to debate the appropriate weaponry for despatching hungry neighbours, zombies etc.