“You mean the are actually doing something?”
Yep! lol....kind of like bailing water out of a boat with no bottom in it.
The problem is when they serve those warrants they are only allowed to take the people listed on the warrants. Those ICE agents have the legal authority to ask anybody they encounter what their residency status is, but current policy prohibits them from doing so.
If ICE goes to a house to get a criminal alien, they should round up all the illegal aliens present.