Israel Border wall cut illegal immigration to zero…
Israel: Border wall cut illegal immigration to zero — How to go from 55,000 illegal immigrants to zero illegal immigrants in two years: Build a high-tech border wall.

In spite of protests by far-left Democrats, border walls are effective.

The former mayor of Shiloh, Israel told Tucker Carlson:

Mayor David Rubin: Between 2010 and 2012 there were 55,000 illegal immigrants into Israel… Rapes and murders in those areas skyrocketed in those years… The Israeli government made a decision. They were going to build a wall, a high-tech steel wall on the southern border, the border between Egypt and Israel… It was almost completed in 2015. In 2016 the wall was up. In 2016 there were 11 illegal immigrants that entered Israel. And then they raised the height of the wall, an additional several feet. And then in 2017 there was not one illegal immigrant that made it through the southern border into Israel.