I don’t think most people realize how much they’ve given up. Unfortunately it’s a fair bit of work to reclaim everything as your story shows. I switched to my own modem and router recently for privacy from my ISP and it was a fantastic experience / worth it but it cost some money and time which can be hard to find.
That’s not to say there aren’t issues of ownership and control to be concerned about, but they are providing real value to many users, especially those who aren’t technically minded.