"Open" borders (what the US actually has) is inefficient and no other developed country has them.

White papers of research are at the bottom.<br><br><br>-----<br>The concept of "open" borders seems to be a constant topic of discussion in political circles. However, the US does not have open borders, but rather a system of border control that is often misunderstood as being open. The term "open borders" is often used to describe a hypothetical scenario in which a country allows unrestricted immigration, with no or minimal controls. In reality, the US has a complex system of border control, with various policies and regulations governing the entry and stay of immigrants.<br><br>On the other hand, the US does have a very large welfare state and economy (by land area and gdp), and it is handing out the passports like hotcakes, so the effective borders of the US are more open than other developed nations. To top that off, the US has a long land border. So, the combination of large welfare state, economy, large area, long land border, and the ease of getting citizenship  has lead to increased illegal/undocumented immigration.<br><br><br>The media likes to make things simple and then  has been able to dupe most of the population into thinking we have "open" borders. But we don't actually have open borders, we just have a long land border, large welfare state, large economy, and we hand out passports like hotcakes. I think I have written enough about why this is inefficient, beyond that would just be repetitive.