Cards on the table: for Google money I'd do it too. If they want to enshittify their product until the competition has a fighting chance, who am I to stop them? Sure, it's an annoying and anticonsumer thing to do. But making a "free" product's bad qualities harder to circumvent isn't the ethical hill I'm going to die on.
I would take the job just to make sure we can sabotage it. And I'm not even affected by their adblocker detection; I just yt-dlp and NewPipe the videos.