Britain decided a while back that it had the authority to get DNA samples from all citizens for many reasons. First and foremost to identify criminals, second so they would have a giant database to do medical research and make money.
But the big reason was that they had the technology, it was an easy effort to demand or surreptitiously obtain DNA samples, and no citizens were permitted to refuse.
In the US, twice now, once in Texas and once in California, “DNA roadblocks” have been set up with very dubious authority, to demand mouth swab samples from random citizens. Lots of effort to evasively suggest it was mandatory, and people really had to be stubborn before they were allowed to leave—assuming that the takers were not able to craftily get a sample from their vehicle.
There is some real evil at work here. I wouldn’t go so far as to say Biblical evil; but good old fashioned totalitarian human evil is bad enough.
Yes, I agree. I’m sure they could get enough data voluntarily.