The NYT actually got this right. Jordan Peterson is explicitly targeting his message for that type of men, because he feels that they need it. It applies to everyone, of course, but that's his primary target.
Edit: the article actually uses the vague term "the implied readers"... which I guess means it's the author's own implication. I have to agree with the above, heavily-downvoted comment above as such baseless speculation appears to serve the writer's agenda over the need to inform the reader.
Uh. Doesnt youtube have like billions of users at this point? Do you have any stats demonstrating that more men use youtube?
I certainly get the impression (though I don't have the data) that JP's clinical practice does not have the same gender disparity, so it is at least plausible that the medium is a greater factor than the message.
And your source for that assertion is?