I am very much of the view that there should be a Brexit tax, where the (~5% of GDP compounding annually) cost of this decision is shared out equally between all who voted for it.
Sign up on HMRC website. They said it was "worth it", so need to put their money where their mouth is. "Don't mind being poorer". Ok then, so you do that.
And if an insufficient number sign up (i.e. less than 50% of voters) - because in fact what they meant was that they wanted to make the rest of us poorer rather than pay it themselves - then we can safely ignore their opinions and rejoin the single market and customs union asap.
It's about time that people started to realise that rights and responsibilities go hand in hand. You broke it, you fix it. Pay up, or fuck off with your bullshit and let the adults start to repair the damage. Some apologies wouldn't go amiss, either.