You don't get it. It's not about just one camera. They have the whole network and can run facial recognition and licence plate readers (that go well beyond just reading plates) across all of it. They don't just know that you left your house, they can track everywhere you go. Some courts have made that illegal for cops to do, so they just outsourced it.
Your camera is just a small piece, but it's a piece you control. Nobody should be throwing that shit up to the cloud. It's incredibly damaging to any kind of civil resistance movement. Stalin could only have dreamed of the kind of mass surveillance that Americans are just freely providing to our oligarchy. It's fucking dumb.