Building the wall helps keep bad people out of America. Documenting who enters the country is also be helpful in keeping out bad people. However, the obvious drawback is that the walls and technology used to keep people out, can also be used to keep people in. What looks like a move to turn the America into a gated community, can also be used to turn it into a prison.

We are serfs. We can't leave our debt enslavement without their permission. Police militarization is revamping medieval knights.