What are talking about? Had you not read in the times of the "Red Scare" and the HUAC, Oswald moved to the Soviet Union?
It seems to me that Oswald was an Intelligence “dangle” after having been taught Russian and starting to build a “legend” in the Marine Corps. There was a spate of phony defectors around that time.
For what it is worth the KGB also thought he was a dangle as well and treated him as such.
The CIA denied this but it lies as easily as breathing (see Dulles’ admission that agents would lie even under oath). KGB lies just as easily, so do we believe them both, one, neither.
It is of interest that upon return Oswald was not de-briefed
at a time CIA de-briefed everyone coming from the USSR. Why?
Once he returned to the US there was no contact (according to the WCR which is full of lies) with the KGB.
Oswald not only had no motive but had expressed regard for the Kennedy family. He also knew how the system works when making the statement that, after JFK’s death, his place would be taken by LBJ who would continue his policies.
This truth destroys the ideological underpinning of the theory that he did it for political reasons. No wonder he could not be allowed to talk.