How do you propose to "PUSH BACK"?
Who exactly is pushing back on your freedom? What AREN'T you free to do?
If you really think that sooner or later we will become Mexcio or Saudi Arabia for ANY reason, then you really HAVEN'T lived (not traveled--LIVED) in third world countries.
In the original article, people were detained by police, and given the impression that they were required to give DNA and other bodily fluids before proceeding.
Any attempt by any government employee to detain a citizen "under color of law", in circumstances where they have no legal right to do so, should be responded to with a civil rights lawsuit. Any police officer associated with such an operation should face suspension without pay.