> Home surveillance stuff is also a waste of time. It is basically entirely ineffective, every petty criminal knows to wear a mask and clearance rates are below 15%.

This is very context-dependent.

If I lived in a large city somewhere and was often not at home, sure - but I live in a small town and am almost always home. "Home surveillance stuff" notifies me when something unexpected is happening on my property and lets me respond to it personally. The clearance rate for reported crimes is immaterial when you're able to prevent the harm from occurring in the first place.