The trouble with your post NJ is that it is surely a political judgement, rather than a statement of absolute fact. But therein lies my point. Never mind that any method of leaving the EU would also have to face the reality that, as our nearest neighbours and largest trading partners, it will always be impractical to leave the EU on anything other than close terms, or at least only in a smooth rather than a sharp transition.
What we're seeing instead is some sort of quasi-religious obsession with a "pure" form of Brexit, one in which increasingly even other Leave voters or leave-supporting politicians are dismissed as unfaithful to the cause, or perhaps even as false prophets. No doubt partly this is because it suits Farage's and Johnson's political interests to be seen in competition with each other -- but the only loser here is the UK public. And the chief cause of this is the mistake of presenting Remain or Leave as binary and entirely open choices with room for interpretation.
We see Khandro, for example, arguing that Farage has lost any sense of pragmatism, while on the other hand it's clear that others here think he is still the only one speaking any sort of truth about Brexit. If there is scope for disagreement among some of the most passionate and articulate Leave supporters on AB, how much more so in the rest of the country. Yet this is what we have constantly been told does not exist; that the Leave voters were of one voice. Manifestly, they are not.
This isn't on its own a reason to stop Brexit altogether. Presumably at the heart of this disagreement on AB, there is still consensus among Leave supporters here that we should still leave *somehow*. But as long as there is disagreement as to *how*, there is at least some sense in pausing and working out amongst ourselves what the answer to that question is.