The peer-to-peer storage and sharing of video files isn't the hard part: it's the ability to search for and discover content that makes YouTube compelling in my opinion. Are any of these p2p YouTube replacements presenting a compelling way to search/discover content in a distributed way? Or if the search index is centralized, do any of them have a compelling model for staying funded without selling everyone's search/…
You could look at LBRY ( https://lbry.tech https://lbry.com https://beta.lbry.tv ). LBRY is similar to PeerTube in open and decentralization, but all content metadata is written to a blockchain, which means everyone/anyone can access the index. This blockchain can then be searched ( https://github.com/lbryio/lighthouse ) or extracted to SQL ( https://github.com/lbryio/chainquery ).
Maybe they could implement a naive "view tracking" by having the client do small proof of work when they interact with content?
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