.... so not a Berlin-style wall at all then.
More like the wall between Jestetten (D) and Neuhausen (CH), or perhaps like Svinesund (which would be my preferred option, but let's not go too far into OMNI)
If it went to a referendum, I am pretty sure that my fellow citizens would choose to mine the wall and have armed guards in watch towers, if it meant it stopped any extra Europeans coming over .......