Parents sell their kids or some are kidnapped by coyotes.
Sounds like a local problem that should not involve the taxpayers of the United States.
And, in fact, if the US government made it perfectly clear that children (and all other illegal aliens) will returned to their country of origin without delay, there would be no market for shipping spawn north.
They can't claim asylum if they walked here from countries south of Mexico. They're supposed to claim asylum in the first country they come to. Which would be Mexico if not some other s-hole country down there. Only Mexicans can claim asylum in the US from events in Mexico.
Not that the quote pulled in the OP explains why Biden is breaking America.
But then again, the reason is obvious. The Rodents need voters, the corrupt treasonous business owners need cheap easily exploitable labor.
That's why.