Ah leaving others to clear up the mess I get it.
There was a referendum, people voted, everybody is now doing their job to implement the result.
It isn't really a mess; it's a situation that is being handled. There is "uncertainty", and due to this our house-of-cards financial systems are taking a bit of a hit.
Because apparently a lot of our prosperity is tied to the "confidence" and "instinct" of financial traders, as opposed to anything concrete.
You know there are bigger problems than Brexit. Our entire economy, along with the economies of most developed nations, are a ridiculous charade, based on everybody owing everybody else masses of debt, and having no way to repay it.
What we really need is a cold, hard, reality check. And for various bubbles to burst. And then to figure out how we can transition away from a future that's only sustainable if we somehow manage to have endless economic growth with finite resources. And how we're going to deal with less and less employment. How we can avoid utterly degrade our planet's ability to sustain us, by destroying the various natural cycles. And various other real 21st century problems.
If anything is a mess, it's not that we left the EU, it's that our entire system is a house of cards. In another 20 years we might wish our problems were as small as the UK leaving the EU.