YouTube blames ad blockers for slow load times, and it has nothing to do with your browser
(www.androidauthority.com)
One thing that you are missing that is super disingenuous, is the fact that YouTube premium does pay more.
If you take a video and you send it to 1000 people who have YouTube premium, and you make another video and you send it to 1,000 people who watch ads, the video you sent to premium users will pay more.
From the stats that you showed, you are lumping every single person who views a video in with the small fraction of people who have YouTube premium.
I also don't believe that you were continuing to get ads on your TV with an active YouTube premium subscription. I get 0 ads on any platform I'm signed into.