One reason for free speech is to point out wrongs. I agree with OZ.

The US or any other society can be improved. We can insist on accountability. The US Constitution forbids 'cruel and unusual' punishment. The act of torture whether the US does it or sources it out is illegal under the constitution as are undeclared wars. A larger proportion of the US population is in prison than in any other developed country. A higher proportion of the prisoners are non-white than in the general population. There is a very uneven distribution of wealth. The millitary-industrial complex needs to be reined in. Under Bush the US opted out of such international bodies such as the International Criminal Court. Obama has not reversed the policy.

Pointing out the atrocities of Nazi Germany and the Marxist tyrannies makes the US look good by comparison. Pointing out the wrongs in the US helps make the US better than it is, and it can be better than it is.