Why don't politicians care about this?
Because there have not yet been any high profile cases involving the collected data used to embarrass or convict a politician. It just takes one embarrassed congress critter to get a giant red sticker on all these devices, their boxes and ads: "This Device Transcribes and Reports Your Conversations" and that is before including those that upload camera screenshots of what you are watching and video of the viewers doing something untoward.
This is literally the history of the Video Privacy Protection Act (1988, back when video rental was a thing). It was passed immediately after, in 1987, a journalist obtained and published the video rental history of a supreme court judge nominee.