“Walls are made to keep animals in or out, walls cannot contain people, Manuel said. People are too intelligent. They can always find a way to get over the wall, under the wall or through the wall.
-— Full Reagan Quote
Yes, but Gorbachev’s wall, was to keep his people prisoners, not to keep out illegal immigrants. There is no equivalence between the two walls.
A wall, barbed wire and an automatic rifle will get you further than a wall alone.