It won’t stop them. Immigration and customs already had a large amount of unchecked power prior to this administration, but under this administration there isn’t anything they care about. They’ve been murdering people in cold blood across multiple blue states for a while now.

Besides that, if people start panicking and trying this then the necessary venues that people have to go to for their first passport(you have to show up in person for your first passport) could become ICE targets or places they stalk. It’s not exactly uncommon knowledge that conservatives tend to not bother getting passports either.