(Note: There are alternatives to YouTube that already use WebTorrent to make videos harder to delete, but their content is incredibly hard to sort through. Instead of improving on YouTube by making filters optional, they just didn’t implement filters at all. So most of the videos in search results are scams or political)
Dead comment that I can’t vouch for asks:
>Why do you need Blockchain for this?
I’m not sure if you need blockchain. I’d avoid it if possible because it’s expensive and slow. But you might not have a choice if you need a censorship resistant distributed log.
>Why can't you just cross post on Rumble with the exact same title and make an extension which replaces 404d videos with the equivalently titled Rumble video?
I’ve never heard of Rumble, but many have built YouTube alternatives only to run out of funding and end up on this list: https://wiki.archiveteam.org/index.php/Deathwatch#Dead_as_a_...
Hell even my team has built a shitty YouTube alternative during a 1-day hackathon. The videos are downloaded peer-to-peer with webrtc and my site has better clustering/search than most *tubes; but of course the site is dead today and all the videos are inaccessible: https://github.com/NavinF/NodeVid.com
This is obviously off-the-cuff, undetailed thinking here, but an approach like this might make sense in the future.