So you know what the rules will be post-brext do you. Well, do us a favour and tell the rest of us, because the UK government don't seem to have a clue, but obviously you have inside knowledge.
That is the big difference between remainers and leavers. Remainers acknowledge the risks of leaving, while Brexiters promise rainbows and unicorns. You, I, the government have no idea of what the trading rules and regime will be post-brexit, but for certain they will be different.
No doubt there will be winners and losers, but to suggest that things will be just the same in our trading relationship ijust shows how delusional the argument has become