Clickbait title and people are sick of prohibition. The title implies it should be treated like other drugs, and in most of the world that means criminalized. Haven't watched the video to know if that's where they're going with it, but it's a bad title.
Plus, the subject is done to death. It's an old topic that has been hashed out for the better part of a century. There's really nothing useful a video can add to the matter. If anything, yet another video makes it harder to sort through what's already out there if you're trying to gain an understanding.
Edit: also, is enough over an hour long that it doesn't really belong here, if the rules are kept reasonably.