Buddy, it ain't state censorship if YouTube isn't government owned. It's actually not even censorship at all when the videos in question can still be linked to or found via the search bar.

Removing a video from the "Recommended" sidebar does not represent a crisis of free expression.

Free speech is being able to say what you want (as long as it isn't screaming fire in a crowded theater or yelling in a library or such like these) without consequences. A society where every website bans you for believing X but yhe government doesn't throw you in jail might respect the first amendment, but it doesn't respect free speech.

It's social engineering