"We should also bear in mind that the right to freedom of speech in the United States was not established by the First Amendment to the Constitution, but only through dedicated efforts over a long period by the labor movement, the civil rights and anti-war movements of the 1960s, and other popular forces. James Madison pointed out that a "parchment barrier" will never suffice to prevent tyranny. Rights are not established by words, but won and sustained by struggle.

"It is also worth recalling that victories for freedom of speech are often won in defense of the most depraved and horrendous views. The 1969 Supreme Court decision was in defense of the Ku Klux Klan from prosecution after a meeting with hooded figures, guns, and a burning cross, calling for "burying the nigger" and "sending the Jews back to Israel." With regard to freedom of expression there are basically two positions: you defend it vigorously for views you hate, or you reject it in favor of Stalinist/Fascist standards."
-Noam Chomsky