You believe too much of project fear fella. Take a deep breath and ask yourself a simple question do you think business on the EU side is going to shot itself in the foot and not sell us the goods? It's the biggest load of crap i have heard in this whole Brexit thing.
Take France... The country was brought to its knees recently by the yellow vests and Macron did the usual French thing and surrendered. That country is brought up on strikes and demonstrations.. any excuse not to work. Just imagine telling all those farmers that their produce is getting held up and the UK has gone elsewhere? Same with the rest of the EU countries that deal with us.
Only reason for stock pilling is because the remoaners putting out this crap. Be one of them bob start stocking up on pepper and olive oil and lettuce

. Let the DT's of this world convince you that armagedon is approaching while us sensible folk get on with life.