That was always the case though. Star Wars isn't worth billions because of the movies, it's worth billions because of the branded products.
Never seen Transformers toys? GI Joe? TMNT? Childrens TV shows were always about selling toys, that was always the bread and butter.
I agree with everything else though, theses unboxing videos and theses "loot crate", they are quite new and play with the instant dopamine rush. They are quite dangerous and seriously need to be stopped. It's crazy that the FTC put so much effort with COPPA to stop "tracking kids" on Youtube, but did nothing against theses kind of videos.