

Youtube seems to be blocking access to a seriously large amount of publicly listed videos
Creators can choose whether their videos should be accessible and whether they should be listed anywhere. Which you don’t seem to have ruled out being the case here. So I’d say you’re jumping the gun here.
I have seen channels which delisted (and later privated entirely) almost all their videos for legitimate reasons, so it’s certainly possible.
And I can attest that at least one of the remaining 26 is hosted, but invisible.
This one is almost certainly just delisted.
everyone needs to jump ship to Odysee
The fediverse has its own video platform (peertube).

Upvoted you for disclosing the use of AI, while providing new information no one else in the thread has been able to provide without AI. Due to disclosing it, anyone who doesn’t want AI can skip the comment, but anyone who’d be glad for the information can still get it. It also makes it clear that this is of questionable reliability, which is good enough in this context, but one shouldn’t use this as a source when doing their own medical examinations.