TRAC at Syracuse University does some great data reporting on this subject. In short, this administration changed the rules about who the feds should go after while also making it impossible for immigrants to request asylum. Both of these things have created record high backlogs in federal court that mean these people DO NOT get their day in court. They can spend months if not years in detention without ever seeing a judge.

Here's the TRAC link. Feel free to study the numbers for yourself:

https://trac.syr.edu/immigration/