If the UK leaves without an agreed customs structure, yes we will have a land border on the island. I flagged that up in one of my very early posts. I realised it on the day after the referendum. We know that, but we are not going to facilitate it.
The problems of a UK outside the EU, without the supports of the eu, without financial passporting, without ryanair, , with miles and miles of lorries at ports , without free movement of fresh food, from Ireland, France, Denmark, Netherlands, are going to pose such problems that a container of ebikes will be chickenfeed..
.. Duck, mushrooms, baileys Irish liquor, lettuce, fresh milk, spanish tomatoes all off the menu. It will need the Dunkirk spirit all over again.
The supply chains for these goods are so intricate, that they take years to re-establish once severed.
This is what your friends in Europe have been trying to tell you....
The irony is that this is being faciliated by the DUP, whose province voted against it and those economy will in all likelihood be the worst affected of the UK regions.