He shows that Youtube says that sexualisation of children is absolutely forbidden on YT, so they banned his video. Yes, this is baffling when they left up the original channel.

I don't understand your sentence.

Do you mean that his video was taken down because it sexualizes a child ?

If so, that's almost as weird as these videos themselves

Yes, his video was taken down because YouTube said it sexualises a child.

“Weird af” was his entire point.

not really.

From what I remember of the video :

He made some very strange "weird shaming" : "if you need to listen to ASMR to fall asleep, you are weird dude".. what if somebody needs to listen to that ? I don't entirely get the appeal, but I don't see how weird shuffled sound are so different from whale songs. And from this video logic, people who listen to that are into bestiality.

His main argument seemed to be that the main goal of this asmr channel is to sexualize a 13 yo. Which if true is obviously very shocking and needs legal action but I did not find his argument very convincing. Some weirdo leaving one comment on her instagram and one weird video are not super convincing.

Proving that there was a pattern of such comments and vids would have been appropriate (and he could have made this video without making fun of random kids)

I would have made similarly weird vids before puberty because I understood maybe 20% of the context.

The accusations are very grave, and they might even be real. I can understand if he does not want to spend months investigating this weird channel but they would warrant a better basis.