The wall analogies can get a little silly at times. This is one of those.
Walls work at almost any scale. Keep the messaging simple.
I find this analogy amusing.
I thought the zoo analogy was excellent mind candy. Simple, easy to understand, and it made the point.
It wasn’t Trump Jr’s, though. I saw it on a facebook meme a few days before he repeated it.
“... like a zoo fence.”
How silly! Not at all alike. Zoo fences keep the animals in.:/