A thought experiment:
Imagine that five years ago someone came up to you and said "press this button and in five years the NHS will be better, food will be cheaper, energy bills will fall, the economy will improve and Britain will have increased clout on the world stage". So you press it.
Five years later all the exact opposite has happened. Same guy says to you "press the button again to undo your error".
Would you stubbornly refuse to press it? Of course you fucking wouldn't. So quite why we still have Brexit fanatics when it's blatantly a catastrophe on multiple levels (and only going to get worse) is beyond me.
In other news, Fat Al now reckons that er actually yes, we are at the back of the queue for a US trade deal. Whoops, funnily enough I seem to remember some other fat cunt denying that would be the case.