For some reason, you seem to be assuming that the government only collects biometrics for "antisocial and dangerous behavior" and is only using them to protect others.
One as a citizen has visibility - or can have visibility- into the government's working, you DO vote, right?
Private citizens and companies, not so much.
No, I'm reacting to a complaint about a specific event. If there's a complaint to be raised about data collection for something innocuous, raise that instead. In this particular instance, I'm glad this horrible person was tagged like an animal and collected, saving a young girl's life.