How do you explain the 14th Amendment?
Section 1: All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside. No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws.
Which has been judicially interpreted as including the children of those present without permission.
The original idea however was to protect the freedmen.
“...and subject to the jurisdiction thereof..”
are persons who cross the border and enter the country illegally “subject to the jurisdiction?”