I believe everybody is tired already EU included. The Germans should kick them out and build the wall in Ireland.
The other 26 countries can’t let the Republic of Ireland suffer with the wall built in NI.
The best option is to cut NI free and let the island of great britain with the Isle of Man, Orkneys, Jersey and Guernsey and Sark go out of the EU and the custom’s union. A big question mark over Gibraltar though