> They came through Mexico and didn't apply there, thats a statute in the requirements for applying to asylum in the US.

No it is not.

The US only has a safe third country agreement with Canada.

Whatever your opinion on asylum law and whether or not it is abused, no applicant for asylum in the U.S. has a legal requirement to seek asylum in any intermediary country they passed through.

Whether these asylum applicants actually qualify based on a well-founded fear of persecution based on the protected classes is a different question.