"It could be argued that the EU has never negotiated."
It could, of course, but it wouldn't be true
The E.U. has bent over backwards to accommodate Britain's position, but has fallen short of sacrificing the interests of it's member nations, which, as a resident of one of them, am eternally grateful
You refer to the E.U. as a single entity as if it was one State - it isn't, it represents 28, Britain being only one of them
Ireland stands to lose most immediately in terms of the risk of re-establishing a hard border
I have seen little understanding of that from your side of the table
Brexit was pushed through on the basis of a vote of a minority of the British people, the majority of those who did vote was so small as to have bitterly divided the population.
The dogged refusal of the Government to re-run the referendum makes it highly probable that Brexit will take place against the majority of the people's wishes, given what hes been revealed of the consequences of leaving
It has become a lemming-march of English nationalists who wish to get out - bugger the consequences - even many of those who put their money into leaving have now pulled out and invested elsewhere.
We know that the North of Ireland and Scotland voted to stay

There is no way whatever that the EU will ever become one nation - Greece, Germany, France, Italy, with their histories and relationships...... are you out of your mind
Personally, as an Internationalist, I don't give a toss what a country calls itself if it stops us blowing each other up - I've enjoyed a life of travelling to different places and benefited greatly from living in one of the most cosmopolitan cities in the world - you don't have to be swamped by other cultures because you choose to share them

I would go look up the term "theology" if I were you - communism has no sky fairies looking down on it
I spent decades of my life having my nose rubbed in English nationalism - certainly long enough to be immunised from it
Jim Carroll