As of right now, Britain is buying food from the rest of the EU due to it being profitable for the EU to sell it there
We buy food from the rest of the world because the Bilderberg bunny ( Margaret Thatcher ), started the UK shift from production and manufacturing into being a service provider. The EU forced the destruction of a lot of our high quality farming to enforce their inferior standards. It was heartbreaking to see tradition English apple orchards in Kent being burnt, just so that we could import French pap for cider making. It's even worse when you consider meat production.
those "orchards" were burnt, because you stopped wanting to run them with your own human labour. you must have forgotten the time in which british children digged underground for coal with their hands, instead of going to school to have a warm winter for the rich brits. or picked up the crap from horses in order to use that as fuel
main problem in europe are the freaked out banks they are all britain centered from the also brit mr. rothshild, it is responsible for brits&americans getting away with printing money and not being forced to actually produce stuff. they constantly forgive foreign trade deficits.
while rest of europe is forced to produce stuff to get access to consumption capacities.
crypto might fix this issue one day, but not with the current idiots that run bitcoin controll coinmarketcap.