We don't need to block it. We need to embrace it and make sure it's used properly, safely and with accountability. We're not talking about nuclear warheads here. There has to be a safe and secure way to get the benefits of large-scale and centralized facial-recognition and tracking.
True, we're talking about something worse. The danger is higher and the detectability and barriers to entry are lower.
This has never worked, period.
No, we're not. Those damage the physical world. Facial recognition will damage something else in the long run - the society - which is just as dangerous.
After that what benefits are there for creating a database with everyone historical location?