For the sake of Democracy, it has to be realistically implemented. If it isn't, a very high number of people outside the metropolitan bubbles is going to lose faith on the political class once and for all and both Con and Lab run a very real and serious risk risk of being decimated in the heartlands. Nothing like radio shows where people from all over ring in in a fit, of both colours, reveals the real picture. The public feedback at national level is nothing like in London.
Political cowardice has consistently kept the crucial issue of freedom of movement out of sight but a customs union means it will remain as it is and that will be a bomb in the areas where the main issue was just that. It is ignored by spineless politicos or those intent or reversing Brexit, nobody has the balls to assume that they are advocating it further but they'll run out of time on that one. The consequences are anybody's guess.
To ignore the mood outside the M25 is pointless, we know what that attitude has already led to. What there is to learn from all this is that this ship is rudderless, the type of sobering thought that calls for a stiff drink. It's even impossible to predict what the outcome of a general election would deliver, either the loony left or the Lib Dems. Were we to have one and the pandemonium would just be total.