Several inaccuracies in this piece, which I wouldn't normally point out but you have a BIG following and with that should come a responsibility to be factual.

To name a few:

"If you live in London, you might not know it, but you’re going to be getting American style healthcare bills soon". This is just blatantly false, the source you link refers to a well-established years-old trend of public/private partnerships that do amount to privatization by stealth, but have not resulted in the end of free healthcare.

"It wasn’t just the hard right that supported Brexit. Amazingly, the left did, too". The overwhelming majority of the UK left campaigned against Brexit, including all the mainstream left-wing parties. Lexit was generally a fringe position.

"wasn’t the EU the world’s largest social democracy? History’s most successful project of social democracy?" The EU is not a social democracy, it has an unelected executive branch and a legislature that is largely powerless.

"Once the stockpiles run dry, which is probably by the summer, Brits simply will begin going without a lot of things. European food, wine, medicine". Britain and the EU have signed a trade deal in December 2020, these types of predictions only held true in the event of a no-deal Brexit. European food will continue to be available in Britain although it might be a little more expensive.