The Goal, by Eliyahu Goldratt...

Rather than spending billions of dollars on ICE and filling up the queues, the money should have been spent on the bottleneck, the courts. Invest in more courts and judges to address the bottleneck. It's obvious to me it's not about kicking and keeping some people out, it's about dehumanizing and detaining people for long periods of time, or indefinitely, and forcing them to provide free and cheap labor via the for-profit prison BS, here in the US or abroad.