Cameras are not nearly as omnipresent as they can be. If they were actually omnipresent, it would not be possible to escape the eye of the camera and get away with a bank robbery. I don’t mean a camera in every bank. I mean 20 different angles on every square inch of public space. No point at which the bank robber (or other criminal) is not tracked from the point of the crime until the police decide to pick him up. We are orders of magnitude away from the sort of omnipresence of cameras I’m talking about. Who robs a bank in that world, when it’s a near certainty that you’ll get caught?
The cost of punishing some criminals continues to rise. As I pointed out with the traffic camera example, the cost of punishing people who don’t stop at red lights has fallen precipitously. Are you sure that won’t happen for other crimes? The only part of the list of steps you mentioned that can’t be automated is the court one. How long do you think it will it take a jury to deliberate when there’s HD video from 20 angles of the alleged crime? I’m also not even convinced that the court part of this process is necessary in the future. Would you hire someone if, when you ran a search on them, you saw video of them stealing a TV from their former employer?
I think it’s a lot more complicated than that. The “closet” protects individuals from a hostile environment. I think there are many behaviors that, when people are not able to hide them, we’ll generally accept. But there are others that simply will not be accepted, and the lines will become quite rigidly drawn wherever societal consensus happens to be when privacy vanishes.