I AM in the USA. And yes, we are heavily censored, but not simply in content. Its a financial censorship, or cut off from banking, or payment processing. And being the "Home of the (everything costs so damned much) Free", starves all initiatives that threaten companies or government.
Wikileaks is one such. Operation chokepoint, another. OFAC sanctions. Holder v Humanitarian Law Project. Knight First Amendment Institute.
But thats the point - USA speech says you can say "Hitler did nothing wrong" and its legal. But you infringe on Powers that Be, and money is involved, your speech via money will quickly be eliminated.
It is hard to discuss these things with people that post such comments as the one you replying to... off the deep ledge where there is no coming back from