Diversity of ideas are allowed. The videos are not removed. If advertisers don't want to advertise on this https://www.youtube.com/watch?v=HDJMZWzW8Ko that's not Youtube's fault.

If not paying creators advertising money is censorship, then most other platforms have 100% censorship. Reddit, Vimeo, Facebook, Hacker News, Instagram, Streamable, Imgur all don't pay ad money to creators.