Once upon a time, the ACLU believed so deeply in the First Amendment that they fought National Socialist Party of America v. Village of Skokie all the way to the supreme court. You may remember the plaintiffs from the Blues Brothers movie, perhaps? The Illinois Nazis? Skokie, the town, was deliberately chosen because it had a large Jewish population, and many Holocaust survivors, yet the ACLU went to court to fight for these bona fide Nazis, and won them the right to wear their Nazi uniforms and their swastikas when they marched, carrying their hypocritical signs about "white free speech."
Can you imagine the ACLU doing that today?