You're getting downvotes, but the current way the UK is run doesn't exclude another Brexit. Their anti-immigrant, pro-business, anti-privacy, anti-human rights party in a two-party system with a constitutional monarchy will be a bane to the EU.
I'd much rather see the UK broken up and the individual countries make a decision on joining. Scotland, Wales, and Northern Ireland could secede and write their own, new constitution that does away with the monarchy and something like single transferable voting (anything but "first past the post" which leads to two party systems).