This is Project Fear mark 2, spin designed to stop Brexit happening. Politicians and wonks hope that if they spread enough fear around, which is what all these ridiculous 'prepping' threads are, they will stop us leaving the EU.
Everybody needs to calm the fuck down, stop digging their underground food stores/adding some more tins to the Ocado order, and realise this is spin, pure and simple. The world will continue to turn, and food will continue to be on supermarket shelves, regardless of what happens with Brexit.
Dominic Raab is in charge of planning. He's a Brexiteer.
The former No Deal Minister Steve Baker, who wanted to publicise contingency planning for no deal before he resigned, but was not allowed to, step up the hardline proBrexit group the ERG which Rees Moog is now heading up.
These are no project fear remainers.
These are people who think no deal is better than a bad deal, and actively would not be unhappy with the military being deployed and there being food shortages, as long as we get back this ridiculous notion of sovereignty - which is the very currency of making ANY trade deal.
You don't get trade deals without compromising on sovereignty in some way.
So unless we have a desire to become North Korea, at some point there is going to be some hard decisions over our sovereignty to be hard.
Personally, given the choice of being a 'vassal state' of the EU or the US, I think I'd go for the one with leaders who can speak good English and like healthcare.
And yes, it does ultimately boil down to a choice between the two, which we will all find out eventually one way or another.