It's parasitic because of its particular approach. For example, it could embed youtube videos... so that the real creators get their pay, but no, Facebook would

It's parasitic because of its particular approach. For example, it could embed youtube videos... so that the real creators get their pay, but no, Facebook would rather that the videos be Facebook videos, thereby the original creator getting zero profit from his hard work. See https://www.youtube.com/watch?v=L6A1Lt0kvMA https://www.youtube.com/watch?v=L6A1Lt0kvMA for a first-hand account of the situation.