One of us is very confused.
You think that when the cops in California arrest Miguel Sanchez for murdering a busload of nuns, they just let him go when they find out he’s undocumented?
Or do they arrest Miguel Sanchez, and try him, and convict him, and incarcerate him, and then release him once his sentence is completed? And if ICE wants to deport him, ICE needs to show up and detain him after his sentence is complete?
The facts of the matter is that if California releases Miguel Sanchez on Tuesday, and ICE can’t be arsed to show up on Tuesday to pick him up, then Miguel Sanchez walks out of prison like everyone else who has completed their time. If ICE shows up to get him, then they get him. Otherwise not. That case where that violent criminal murdered a white girl? It happened AFTER he was released. It wasn’t like California let a white-girl-murdering illegal go free, because he hadn’t murdered that white girl yet.
We let lots of criminals out of prison after they’ve completed their sentences, and some percentage of those criminals go on to re-offend. We don’t have a crystal ball to tell which ones will go on to murder white girls, and anyway in this country we don’t convict people for future crimes, only for past crimes.