You can be disgusted all you want, nobody is forcing you to visit that site though. Going to sites where you disagree completely with their philosophy is called trolling.
You want a moral 4chan style site, go to christchan(real site btw)...thats the thing with the internet, sites that people want will always stay alive. I mean look at 4chan stats: "Current users: 29,989", that's almost 30,000 users using the site at the same time, so I guess there are plenty of people who don't mind the openness of the site.
Freedom of speech IS axiomatic, in the bill of rights they didn't write..."freedom of speech, except when it disagrees with our beliefs", all the freedoms guaranteed by the bill of rights are not there to protect the opinions of the majority, they are there to protect the opinions of the minority.
Sure its not treated this way in the real world, and that's where the hypocrisy lies. All these people being proud of "the freedoms we enjoy in America", are usually the same people who then go around and start telling everyone what they can or can't do.
Internet really is the last standing bastion of actual freedoms. I can call you a little bitch when you act like one, and you won't run to the boss crying about getting your feelings hurt.
No there aren't any degrees, when you start applying degrees and stop giving a shit because it doesn't apply to you that's when you start helping others to strip away your own rights. The key is to set precedent, and when you have one its much easier to go for the bigger fish.
And here is a good quote for you: "In Germany, they first came for the communists, and I didn't speak up because I wasn't a communist. Then they came for the Jews, and I didn't speak up because I wasn't a Jew. Then they came for the trade unionists, and I didn't speak up because I wasn't a trade unionist. Then they came for the Catholics and I didn't speak up because I wasn't a Catholic. Then they came for me -- and by that time there was nobody left to speak up."
So you may disagree with whats being said, but you really need to take the approach of "I disapprove of what you say, but I will defend to the death your right to say it." because if you don't, it won't be long before it affects you.