I’m not a fan of McCarthy or any other statist, regardless of who they are on a quest against. That witch hunt did more to promote communism than it did to prevent it.
What Witch Hunt are you referring to? McCarthy was right, and the facts of history have totally vindicated him.
If you are saying there was not widespread Communist infiltration of the U.S. reaching to the highest levels of the federal government, I suggest you stop swallowing the propaganda of the media & academia and check the real history revealed from many sources. Among them the facts revealed at that time but spiked by media & academia, Soviet archive information made available after the Soviet Union collapsed and recently declassified US intelligence.
Find out what the real history is on the Venona project, Alger Hiss, Whittaker Chambers, the Rosenbergs, Elizabeth Bentley & Harry Dexter White.
You best start would be:
Witness (Whittaker Chambers)
Followed by:
Spies: The Rise and Fall of the KGB in America (Haynes, Klehr & Vassiliev)
Venona: Decoding Soviet Espionage in America (Haynes & Klehr)
The Haunted Wood: Soviet Espionage in America - the Stalin Era (Weinstein & Vassiliev)