I don't see how that is relevant to the issue under discussion. But I am highly sceptical that the UK will leave the EU.
Electorally it is not in Labour's interest to take a strong Remain position. Now that does not mean that there are not political arguments for taking such a position (I don't agree with them but I accept they exist) but it is total intellectual dishonesty when those that have argued that for electoralism (to which end the LP must support privatisation, attacks on workers/disabled etc) turn around and now insist that the LP back a second referendum or revoke A50. And yes I include you in this category, you've spent years arguing Corbyn should be gone in the name of electoralism.