>Don't like porn? Cool, don't buy it or avert your eyes!
Why do you then tell others how to live their lives? Is really leaving everyone to their own devices the good idea?
>As if this would stop anybody from getting access to pornographic content.
There is a good difference between something being generally available to access (and getting promoted even), and being technically available to some. There is material worthy of being suppressed, hate speech and calls for violence being some of them. Did this censorship stop anybody to access Mein Kampf or other such vile stuff? Not really, but it helps a lot that these are not in the front and center.
EDIT: I invite downvoters to voice their point