One could safeguard thousands of movies, song, art of any kind, that might disappear because some of it becomes lost media. Instead some prefer to backup content made for an ad platform.

Let’s be clear here, movies, songs, and most art are also vehicles to serve you ads or generate admission/purchase revenue off the consumer. Like you criticize YouTube for being an ‘Ad Platform’ but elevate ‘Songs’ as if you’ve never heard of a radio station?

Funny enough, most films, music and other content are much better protected from being lost. They are mass produced, mass released, and have many many many pirated copies not to mention retail physical copies. YouTube on the other hand? People take for granted that it’s there, online, easy to access from anything, and much of it doesn’t easily have redundant copies on the internet so it vanishes in a flash when removed from YouTube.