All your comments on this thread so far are straight from the CPUSA handbook of talking points circa 1950.
"McCarthyism" itself was a creation of the Communist party. The Daily Worker coined the term.
The liberal blather of "civil liberties" being under seige by those who went after communists was the creation of Willi Munzenberg 25 years before McCarthy.He used it to make the Sacco and Vanzetti case an international cause. Worked so well back then, the CPUSA continued to use it. And liberals to this day use it. Here is the history of the tactic: