How do destroyed buildings lead to such craziness?

It's not just "destroyed buildings", like in a few military bases here and there. Read again.

I guess taking on that quote was a pot-shot. And, yes, the US have a role to play in North Korea. After all the Kims, at least initially, built their reputation in Korea on fighting the Americans.

Have you ever been to Tokyo? Craziness everywhere!

Japan didn't have "every substantial building destroyed". But we can pretend you are funny if that's what you are into.

According to your logic, we can expect concentration camps to pop up right and left in the Philippines a few years from now.