Flock doesn’t defend anyone from anything, it’s just surveillance technology. The defending is done by other people, who may or may not use the surveillance for good.
Historically, surveillance is used for good and evil. Certainly, Nazi Germany would have killed many more Jews if flock had existed during that time. Their surveillance was pretty primitive by modern standards, and they still managed to track, identify, and execute millions of Jewish people.
Ultimately, we have to take a step back and analyze if our incentives and systems are designed such that surveillance is used for good, and evil use is deterred. And, regardless of political affiliation, the answer to that analysis should be a resounding no.
Do we keep our officials and law enforcement officers accountable? When surveillance is misused, does anyone even know, let alone prosecute? How difficult is it to misuse surveillance? How much transparency is built-in to how the surveillance is used? These are the questions we should be asking.