It would be a whole lot easier to simply catch and deport
Appeals court reverses decision on immigrant detention, leaving no-bond policy in place
The 5th U.S. Circuit Court of Appeals has reversed a July 2 panel decision requiring bond hearings for immigrants held under the Trump administration’s mandatory detention policy.
For now, that means many immigration prisoners from all over the country can still be held indefinitely without bond in some of the nation’s largest detention centers in Louisiana, Mississippi and Texas. The Trump administration policy requires detention without bond for an immigrant who crossed the border illegally, no matter how long they’ve been here.
The appeals court will rehear the case in September. (snip)
Some judges in the 5th Circuit had already ordered bond hearings or releases based on the July 2 ruling. The Supreme Court has agreed to take up a related case and resolve the conflict in its next session starting in October.
The law states that illegals can be held up to 6 months, charged a small fine, and deported. Nothing about bond hearings, especially knowing that the illegals will just disappear. Just deport them.

The 5th U.S. Circuit Court of Appeals has

Our distinguished host is exactly right: it is more efficient and certainly less expensive to ship them out almost immediately upon apprehension. If they believe they have a case to make to remain in the United States, they can make their cases at the US embassies or consulates in their home countries.