Well, our borders might be legally closed, but with 2.2 million people illegally crossing them from the southern border per year, that is the entire population of Houston, maybe it's fair to say they're closed but effectively open. Coupled with the fact that if you're caught, you can just say you're claiming asylum and you get to stay.
They are not "legally closed", they are controlled. A closed border permits no crossings, which is clearly not the state of reality.
The borders are legally closed everywhere except designated border crossings.
Complete myth is a stretch isn't it? "closed border" doesn't pass the sniff test either.
Those are not the only choices. A border can be controlled.
fun fact, no its not.
Fun fact, all those helicopters, horse patrols, infrared cameras, drones, aid groups, and vigilantes are fake news. Hacker news is better than this, everyone.