https://cis.org/Arthur/Mayorkas-Teases-Safe-Third-Country-Asylum-Agreement-Mexico
Just adopt a policy that says, except for children because you don’t want to send children back by themselves, just adopt a policy that if you didn’t seek asylum in the first safe third country, you can’t come in, period.
It really seems if Mayorkas was sincere he's tell us the truth about how bad the situation is.