I keep thinking we have got the wrong end of the stick with our pitiful attempts to negotiate brexit and perhaps we might have more luck if we changed tack a little.
Next time we go to discuss the matter with the EU, ask them the very simple question, "HOW DO YOU INTEND TO SELL YOUR GOODS TO US IN THE FUTURE?" Immediately after asking the question, leave the negotiating table and come home.
When next we meet ask, "WHAT IS YOUR ANSWER TO OUR QUESTION?"
There are three possible outcomes, they stand looking dumbstruck and say nothing, they continue being rude to us, or they come up with an answer.
Either way our response is the same, we say, "I'M SORRY THAT IS NOT GOOD ENOUGH, GO AWAY AND COME BACK WITH A SOLUTION WE CAN ACCEPT."
We persist with this strategy until they come up with a workable solution, for I'm sure they do actually want to sell us their goods, no matter how much they give the impression that they don't.