Lenny Bruce, was a comedian who used humor to talk about everyday American life. And part of how Americans lives is how we interact with each other even in the most personal of ways. Including, marriage divorce, family and yes, even sex. All he did was talked about how Americans lived, but he did it in public. He said things in the public that right-wing culturally conservative establishment who perhaps thought we were a Middle Eastern fundamentalist country and not a Western liberal democracy, didn't believe Americans should be allowed to hear or say.
As I mentioned yesterday had Lenny came out 10-20 years later, he probably never spends a day in jail for his act. At least outside of the Bible Belt. He actually had a significant criminal record as a thief and dealing with drugs, but when it came to his comedy act he was arrested for literally using adult language in public. Which is clearly unconstitutional under the First Amendment of the United States Constitution. He wasn't libeling people, he was inciting violence, he wasn't calling for violence to come against anyone. Even the cops who arrested him for using adult language. He was simply using adult language in public as part of his comedy routine.
People tend to think of political correctness as censorship against language that may tend to offend certain groups of people. And that is true obviously, but political correctness in the 1950s and early 1960s was used against people who used language that lets say the most religiously conservative of Americans not only find offensive, but immoral. And when that language is used they believe the people who say those things should literally be arrested. Today political correctness is used against comedians and other commentators who say negative things even if they're true against minority groups in America. Lenny Bruce was a victim of 1950s and 1960s right-wing political correctness fascism.