“SNIP
....the “Remain in Mexico” policy in January, when new U.S. rules made it much harder to seek asylum on arrival—and its escalation in June, when Trump threatened to slap tariffs on Mexican goods, and AMLO agreed to deploy 26,000 National Guard troops to the border.
Under the new policy, they were sent back to Mexico by the tens of thousands and required to wait in dangerous border towns for a court date....Word was getting back that applications weren’t being approved, anyway.”
https://finance.yahoo.com/news/smuggler-describes-children-die-gets-120029359.html
The only border jumpers who are being sent back to Mexico are people who claim asylum.
Bottom Line - no one is going to ask for asylum anymore.
They are going to ask for a court date and Catch and Release.
By the way - we have a treaty with Mexico that allows us to send Mexican border jumpers straight back to Mexico without any due process.
There is no reason Trump cannot coerce all the Central American countries to sign exactly the same treaty that Mexico (and Canada) have signed.
Illegal immigrants trying to cross the southwest border would go down by 90% if Trump forced that treaty on all Central American countries.