I agree with you. They shouldn't. I'm playing devils advocate to make a point. You can't expect websites to treat all opinions as equal. Even 4chan has moderators.

Youtube only differs from other websites in scale. They are moderating content as we see fit. We can disagree with their reasoning behind moderation. But it's silly to act like they didn't have this right all along

(And that's what I see in this comment section. Comments like "why should youtube say what I can and can't watch?" I'm pointing out that those arguments are a dead end.)