Censorship requires the use of force, and government claims a monopoly on the use of force.
Maybe in your mind that's how you think things should work, but in the real world, the private sector uses force all the time to get its way. Sorry that that doesn't fit your view of how the world should work, but unfortunately that's the way that it does work.
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My bracket wasn't good enough to beat SuperNiceDog's in the GameFAQS Rivalry Rumble. Congrats!
This is Yesmar.