My parents bought a Ring (I am heavily against it for every reason you wrote, plus I can’t stand the idea of a company owning my family’s video footage, I asked them to let me set up some sort of CCTV system but they just want the easy way)and it provides them with a quick, cheap motion activated video feed of their home straight to their phones from anywhere in the world. This isn’t even a doorbell function, the thing can be configured to detect motion over a selection of distances and send you a notification straight to a live video feed.
Sure that can be manually set up but for a lot of people who aren’t too tech savvy, grabbing something like a Ring from bestbuy is quick and easy to get running. Maybe the issue could be helped if a someone sold something like an arduino based doorbell / cam, with easy to use software or an app like Ring that didn’t call back home.