Re: @DavCrav
Davis in 2012 was quite clear that we should "remain in the customs union" and participate in a "common market to deliver economic benefits for the whole continent".
So what changed? Other than his falling in with a nihilistic bunch of extremists. He's genuinely puzzling: I've no reason to suppose he expects to profit from the Rees-Mogg hedge fund's bets against Britain, nor that he'd even take such an incentive.