Excellent.  I agree with you.  I was cheering through the whole read.
Now, can you make a comparable analysis about the Berlin Wall.

What if someone builds a house to keep you in?
...a fence to keep you in?
...a border to keep you in?

Suppose you were a free range rancher in the Old West and a farmer put up a barbed wire fence to keep your cattle away from his crops (and the only path to water in the area)...

What if someone built a wall around the equator to keep one hemisphere away from the other?  Is that wall your protection or your prison?