Well, I voted Remain, and would again; but imo, Britain actually needs to get a kick up its bum. Leavers need to see their children failing to get jobs, their granny failing to get her cancer drugs, the supermarket shelves half empty, losing their own job. They need to see standards of care fall as EU trained professionals are replaced with barely-English speaking, dubiously qualified Africans. (Not racist, fact. I'm a HCP and you would be very worried if you saw the standard of the more or less unchecked Nigerian 'trained' staff we've taken on. Post graduate diploma in a fortnight, anyone?).
They need to experience life as a small, insignificant island on the arse end of Europe kicked off the top tables it has been allowed to sit on for probably too long.
They need to understand the bonfire of trading standards, employee rights, human rights, food standards heading our way once we start having to trade with way more unregulated, lower standard'ed countries. Chlorinated chicken is a can, anyone?
OK, this will shaft Britain for a good 10 years, though you'll not the see chief Brexiteers suffering - JRM hasn't moved part of his company to Dublin for fun; Boris won't suddenly be joining any bread queues, Farage will hitch his pony to any advantage he can gain.
Thankfully my whole family hold a non EU but developed country's passports so my DC will be OK. Sorry for the Remainer DC, but, heigh-ho to Brexiteer ones.