There's another angle that's not being represented by any of the parties.
This will never happen but... Imagine, a party puts their hand up and says "The referendum was wrong. It was run in an undemocratic manner and because of its flaws it has pitted the country against itself. The result was never binding and should not be honoured, especially on such a small majority.
We don't propose holding another referendum because it is a complex issue that needs detailed investigation to determine what is in the best future economic and political interests of this country. It is simply impossible to expect the demographic to make an informed decision on such a pivotal issue when they are not party to many of the constraints and workings of inner and european governments and therefore what it is actually possible to negotiate. This is not being patronising, we do not ask the public do decide on other complex issues for the same reason.
We also should not be held to leave the EU by arbitrary timelines if it will be to the detriment of this country. This should not be a forever decision, we must retain the option to join or leave at any point if it is in the UK's best interests.
If you vote for us we will guarantee to do what is best for the country, whether that is in or out of the EU. We will decide this based on effective planning and management guided by industry experts. We will ask you, the people, directly what your most important issues to guide our public spending and policy making and will of course account for Brexit in all of that.
We have had 3 years of Brexit dominating every corner of political life, and now it is time that we directly focus on the things that matter to each and every one of us. It's time we use your tax money efficiently to improve the quality of everyones' lives instead of throwing it away on emergency strategies for a self inflicted situation which we have in our power to avoid."