Personally, I can't think of a worse kind of hell.
a) Food
b) Lack of shops
Don't be thinking, well that's ok, I'll just nip to the corner shop and stock up on their goods. This would be fine for a while until they run out of stock (no deliveries), but I challenge anyone to remain alive and healthy after a month of Ginster’s pasties, Frey Bentos pies and Happy Shopper digestives. Not only that, I imagine many would eventually get pissed off with receiving Blue Hallmark label CDs, water pistols and boxes of stale Matchmakers as presents.
c) Deliveries
With most intercontinental trade and passenger routes into and out of the UK on minimal, eventually, imports would dry up. Many truck drivers would be unable to deliver goods and warehouses filled with food and other goods would just fill with dust and rodents as pick and pack staff would be off work.
d) Snow

e) Eventual economic collapse
With only corner shops, some pubs and 24hr garages remaining open, people unable to get to work because of close down and an indefinite period of non-work, eventually funds would dry up. The wealthy would be the corner shop and mini-mart owners and those rostered to work over the festive period. The poor would be those who initially ignorantly strive to maintain the enforced period of consumerism. Even then, as their money dries up because of banks being closed, the economy would eventually start to collapse. Overworked medical workers would struggle to cope with the continuing growth of people with obesity-related health issues, riots would begin and an overworked skeleton staff of police and military would struggle to maintain order.
So no…I don’t wish it was Christmas every day…SaveSave