Brexit Looking Doubtful

I am still hopeful that at some point in the near future, the Government will look at the Brexit deal on offer, glance at the rapidly emptying coffers and announce that we won't be going through with Brexit after all because it is just too damn expensive and detrimental to the British economy. 
They could blather on about their priority being ensuring the British nation is not left without a pot to pee in then get back into bed with the EU and carry on as if nothing happened.
With the sums being worked out and the Leave campaigns promises being exposed as whopping great lies, their are murmurs that Britain could just not afford the drop of a third in the economy and are looking for a way to back out gracefully, probably via another referendum on the deal on offer where hopefully this time the idiots calling for Brexit are suitably sent to a corner.
A number of senior European figures have said Britain is welcome to change its mind on Brexit and with Theresa May's position looking perilously unsafe, things could very quickly all change.
My view is that we are struggling now, throwing Brexit into the mix and shaving as much as 33% off our already slumping finances is economic suicide and as our Government are elected to do the best thing for us, in this case the best thing would be to hold their hands up and say Brexit is unaffordable and being in charge of our own borders is very little reward for the Brexit slump which would make the last decade of austerity look like a party.