I don't think you understand irony. Announcing a campaign for ownership via an outlet you don't own is ironic. Read the definition. Irony is not a comment on the campaign's actual or potential efficacy.
It would not be ironic to distribute your ownership-promoting materials through the mail while not owning the post office. There is nothing about YouTube that reduces a creator's stake in their video.
There's some key differences there. 1, the post office doesn't keep your material on hand so people can visit and consume it. 2, you have to pay the post office each transaction. 3, the post office is taxpayer subsidized and administered by elected officials.
Again, I did not say what they are doing is bad, wrong, or whatever.