Incidentally, I was born on the same day the Berlin Wall was built - 12th August 1961. I visited it when I was 17, when Checkpoint Charlie was still in place, and a tiny museum next to the wall showed the methods desperate people had used to try to escape to the West. I saw with my own eyes the soldiers with guns on their checkpoint on the other side of the wall. Years later, I witnessed the wall coming down.
Maybe that's why walls resonate deeply with me.
They are not the solution.