As I understand it,Europe have been charging the UK an export tax since Brexit,the useless UK government should have imposed the import duties at the same time,they didn't because they couldn't get their act together(what's new),today the news is full of UK farmers going to go bust because they no longer get subsidies from the corrupt EU and before the remoaners start agreeing with that-where the heck do you think the money for the subsidies came from in the first place,it came from the British tax payer,paid into the grasping hands of the corrupt regime known as the EU who then doled out a small amount back to the UK as various subsidies the rest went to feather the nests of all the politicians and their hangers on in Brussels and Strasbourg.
Please also note that the Brexit that was voted for has not yet been implemented and I doubt it ever will be, so those remoaners who keep blaming Brexit for all the ills in the UK need to first check their facts,it would help if those who are supposedly in charge knew how to balance the books(never mind cook them).