It looks to me like you absorbed the culture when you were young, came into adulthood and absorbed a different, leftist, perspective and then stopped learning from that point forward. During the entire Cold War the NSA was intercepting Soviet message traffic and this was classified. This project was named Venona. Early parts of this material has now been declassified. I suspect that you're unaware of this.
That Right Wing paranoia has basis in
fact:
The decrypted messages gave important insights into Soviet behavior in the period during which duplicate one-time pads were used. With the first break into the code, Venona revealed the existence of Soviet espionage[21] at Los Alamos National Laboratories.[22] Identities soon emerged of American, Canadian, Australian, and British spies in service to the Soviet government, including Klaus Fuchs, Alan Nunn May, and Donald Maclean. Others worked in Washington in the State Department, the Treasury, Office of Strategic Services,[23] and even the White House.
The decrypts show the U.S. and other nations were targeted in major espionage campaigns by the Soviet Union as early as 1942. Among those identified are Julius and Ethel Rosenberg; Alger Hiss; Harry Dexter White,[13] the second-highest official in the Treasury Department; Lauchlin Currie,[24] a personal aide to Franklin Roosevelt; and Maurice Halperin,[25] a section head in the Office of Strategic Services. . . .
The Office of Strategic Services, the predecessor to the CIA, housed at one time or another between fifteen and twenty Soviet spies.[28] Duncan Lee, Donald Wheeler, Jane Foster Zlatowski, and Maurice Halperin passed information to Moscow. The War Production Board, the Board of Economic Warfare, the Office of the Coordinator of Inter-American Affairs and the Office of War Information, included at least half a dozen Soviet sources each among their employees. In the opinion of some, almost every American military and diplomatic agency of any importance was compromised to some extent by Soviet espionage.[29]
When the Soviets can place agents in the White House, Dept. of State and the Office of Strategic Services, the predecessor of the the CIA, that's pretty damn impressive deep penetration. Regarding the declassification:
The dearth of reliable information available to the public—or even to the President and Congress—may have helped to polarize debates of the 1950s over the extent and danger of Soviet espionage in the United States. Anti-Communists suspected many spies remained at large, perhaps including some known to the government. Those who criticized the governmental and non-governmental efforts to root out and expose communists felt these efforts were an overreaction (in addition to other reservations about McCarthyism). Public access—or broader governmental access—to the Venona evidence would certainly have affected this debate, as it is affecting the retrospective debate among historians and others now.
So your perception, formed when you were entering adulthood, probably needs to be recalibrated in light of the new, declassified, evidence which shows how damn thorough the Soviet spy penetration of America was in that era.