This attempt to reframe speech that you dislike (that you feel "crowds out" speech that you see as more important) as censorship, in an attempt to justify actual censorship of that speech, is just what I call orwellian. It's like saying that "words are violence" to justify actual violence.

To crowd something out means "to push, move, or force (something or someone) out of a place or situation by filling its space". Youtube videos do not crowd out other youtube videos, there's enough space on youtube for everyone.