Pamasich

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).