But if your spouse/SO/sister/mother/girlfriend/whatever was assaulted while jogging in a park that had Flock cameras, and it allowed law enforcement to quickly identify, track, apprehend and charge the criminal, you'd absolutely be grateful for the technology. There's nothing worse than being told "we don't have any leads" when someone you care about has been attacked.
Appealing to emotions, tsk tsk, but going right for the jugular? Yikes.
Also, elephant in the room: if your sister was going to be raped or beaten, it would probably be by someone in her home, in her family. Like her cop husband.