Hmm, that sounds to me that Brexiteers DO know what they want: “take back control of our laws and borders” but that many don’t want to pay the price for that, which is losing all the advantages of being in the EU. “Taking back control” sounds nice but it means taking the UK out of the EU, out of the EU legal, economic and regulatory system, which means giving up all the good (lack of tariffs, international mobility and purchasing, etc.) along with the “bad”.
There is simply no way the EU is going to let the UK have all the good aspects of the EU with the UK having some kind of unilateral veto over anything the UK doesn’t like. There’s no way to “take back control” without giving up all the benefits.
So it seems to me that is the essential conundrum: what the Brexiteers want comes with a heavy price they don’t want to pay. There is a group of Brexiteers who seem to be willing to the pay the price (or who live in denial there will be one) and want a No Deal Brexit but a lot just seem to keep thinking that they can magically somehow have their cake and eat it too.
For the people who somehow against all logic seem to think the UK can leave the EU without giving up the benefits, how does that work? How do they think a Brexit that doesn’t leave the UK out in the cold works? Also, how on Earth do they think they can persuade the EU to agree to that? What are they going to offer? They don’t want to pay the price of being outside the economic union, so what possibly could they offer to persuade the EU to give them special preference over the other 30+ member nations? How does that chain of illogic even work?