He didn't associate with communists therefore all of the views he held about the US and Marxism were an act? Sorry but that makes no sense to me. Did he or did he not repeatedly express his hatred of the US?
"Marxism" is not synonymous with "Communism".
All Communists are Marxists but not all Marxists are Communists.
Not everyone who criticizes American Racism (and the US was pretty damn racist in the 1960s) and American Capitalism hates the US.
There was nuance in the stuff he said about the US and Capitalism.
So you think he was controlled or directed by others and they told him not to associate with communists? Or failed to tell him TO associate with them? Don't you think that if he was told to be a communist that part of this cover would be to actually attend communist meetings? And what would he be "used" for? They want him to pretend to hold these radical beliefs and do what with this cover or legend? Infiltrate unemployment offices in Dallas?
In any case, when he was 16 he wrote to a leftwing group about joining them. When he was 17 he expressed his communist beliefs and the superiority of the USSR to friends. Was he being controlled when he was 16 and 17?
From the time he was a teen in David Ferrie's CAP unit til adulthood where he became close to George DeMorenschildt, Oswald frequently associated with rightwing or anti-Communist individuals.
Where are the examples of Oswald befriending or associating with other Marxists or Communists? He did write a few letters to Communist groups and Individuals but his true intentions for doing those things are not clear.
I honestly don't know the answers to your questions. I'm just challenging your view that it isn't debatable. It certainly seems debatable.
You seem to believe he was fanatical in his love for Communism. I don't entirely reject that view. I'm only noting that there's mountains of evidence that challenge the view that his statements about Communism were authentic.
Outside of the conspiratorial view that Oswald's behavior was an "Act" meant to help him build a persona, there's the non-Conspiratorial view that maybe he was just a Contrarian personality.
Contrarians often disagree for the sake of being disagreeable. They're the people who adopt unpopular opinions just for the sake of being different. Or people like me who like to play Devil's Advocate
Maybe his "Commie" persona as a teen was just a way for him to be different and stand out.