This is a hot take, the problem is that powerful tools like surveillance are easily (and inevitably by humans) abused to suppress what shouldn't be crimes, including expressions; and even when they don't, the potential to (including retroactively going through stored logs in the future) causes a "chilling effect" that increases anti-social behavior.

If people want to surveil the inside of their own homes and businesses that's fine. I think some public areas should be surveilled and others private, with indicators, so if people want to be watched for their own safety when they go outside they can, but if they want to avoid tracking they can go through unmonitored areas. Those will fix your latter and former concern respectively. More centralized surveillance won't help much more but certainly lead to harm (as Flock has, already, by mistakenly accusing people with similar faces for crimes across the country, and letting corrupt cops stalk their spouses).