I started to watch a lot of youtube videos recently, but it doesnt seem all of them require EME. Am I wrong? Because it seems I can download them fine with a fi

I started to watch a lot of youtube videos recently, but it doesnt seem all of them require EME. Am I wrong? Because it seems I can download them fine with a firefox addon, except a very few of them for obvious copyright reasons. I also rarely see song videos that cannot be downloaded from mp3 conversion websites. No idea if those websites are legal or not. Anyway, on one side you have youtube advertising and adblockers, on the other side they want to force people to stay online and not use the content offline, but they can't have all of them not block ads. I really wonder about the real cost of hosting youtube videos, and the money they make from ads on youtube. I think there is a huge loss there. Youtube RED might solve this.