Brexit is basically a case of old people sticking it to the young, the same way that climate change denial is doing worldwide. Old people, stuck in the 'good old days', when Britain was a world power, unable to grasp the changing world and UK's position in it have gotten sold on a lie than EU is the root of all evils and they'll be better off without it. Not that the EU is perfect, but a better alternative doesn't exist. EU needs to be reformed, not destroyed.
Being a European (and not from the UK), I'm kinda ambivalent about Brexit. On one hand, I'm really sorry for all the young people in the UK that will live with the consequences of this terrible self-own. On the other hand, the British (or, more precisely, the English) were never really committed to the idea of the EU, and always demanded (and gotten) special treatment and exceptions to the rules and for that, I'd be glad to see them out. If nothing, then in time when the young, overwhelmingly pro-EU, finally get into power they will be ready to join the EU on an equal footing.
Interesting times ahead, in any case.