You CAN turn off watch history in Youtube (not sure about Spotify). However, for better or worse revealed preferences seem to show that people prefer automatic content recommendations over doing the search & bookmark work themselves.
Not sure what the next best option here is. There was a thought experiment once where it would require the president to kill the key holder in order to launch a nuclear attack (the launch codes would be embedded in the designated key holder's heart). In theory this would make sure the president knew the seriousness of his or her actions, but it was never seriously considered as a protocol.
I'm not sure of your point, but I think I disagree. The previous comment was about going from poverty to middle class. Why won't this be possible in the future?