It is estimated that over 1000 individuals per day are entering the United States outside of the ports of entry. No registration (no finger printing), no background checks, and just as important, no Covid19 testing.
It must be assumed that many of the individuals documented in these videos believe that a background check would disclose something in their past which would disqualify them from legal entry.
What is a known fact is that many of the groups documented herein are smuggling hard narcotics. They will deliver their payloads to predetermined locations north of the border, then return to Mexico to prepare for their next smuggling run.