For pretty much anyone reading this, open borders is the reality. Any of us can show up unannounced almost anywhere on earth and be welcomed in with no more than a cursory interaction with customs, at least to visit. And if you can find a job or have some savings, you could move to quite a lot of them.

I think people here would be a lot more in favor of them, if we were treated the same going to other countries as people in the developing world are treated coming here.