Technically a human could watch all the videos on YouTube. But if a human were to cut together bits of each video to make a new one that would probably be an infringement. But if a human saw a video and wanted to recreate it that might be allowed depending on how close to the original they got. It points out some glaring issues with modern copyright law. I don’t know what the solution is, but if a multinational tech giant is doing it, it should probably be illegal.