This will be a controversial statement here, but for better or worse, Youtube is a modern Library of Alexandria. It archives a significant amount of human knowledge and culture in video form, and for a lot of it, there is no backup.
Big, popular channels do push their viewers to alternative platforms like Patreon because of Youtube's censorship guidelines and arbitrary demonetization, but a lot of valuable content is on smaller channels where the owners may not have the wherewithal to transfer all of their content, much less their audience.
This will be a controversial statement here, but for better or worse, Youtube is a modern Library of Alexandria. It archives a significant amount of human knowledge and culture in video form, and for a lot of it, there is no backup.
Big, popular channels do push their viewers to alternative platforms like Patreon because of Youtube's censorship guidelines and arbitrary demonetization, but a lot of valuable content is on smaller channels where the owners may not have the wherewithal to transfer all of their content, much less their audience.