What seems contradictory is how Oswald seemed to like and admire JFK despite all the hostility between the US and Cuba early in Kennedy's Presidency.
No matter whether he really liked JFK or not, the intensity of the news coverage of the covert wars and subsequent language of the speeches by both Castro and JFK in the fall of 1963 most likely alarmed LHO because of the very real threat to Castro and his revolution. (I was only ten years old back then and therefore didn’t fully comprehend, but I do remember the high tensions and constant news coverage. Castro and Cuba were the first to come to many people’s minds when trying to make sense of why JFK was killed.)
LHO apparently made his assassination attempt on Walker soon after Walker’s call for the overthrow of Castro. And the perception that JFK was also threatening Castro was apparently all the motivation that LHO needed...
That seems wildly speculative.
It’s hard to believe the news coverage about Cuba was MORE intense in 1963 than it was after the Bay of Pigs or Cuban Missile crisis.
General Walker was no more anti-Communist than the average White Southerner in the early 1960s.
What Oswald may have been concerned about with Walker was his violent anti-Integration racism.
Walker was believed to have incited a riot at ‘Ole Miss’ in 1962:
“The crowd reached approximately three thousand rioters, led by former Army Major General Edwin Walker, who had recently been forced to retire when he was ordered to stop giving out racist hate literature to his troops but refused to do so. The crowd consisted of high school and college students, Ku Klux Klan members, Oxford residents, and people from outside the area.
By 9:00 p.m. the riot turned extremely violent. U.S. marshals who had been defending Meredith and university officials in the Lyceum building on campus, where Meredith registered, ran out of tear gas. Rioters threw rocks and bottles and began to shoot. President Kennedy then decided to bring in the Mississippi National Guard and Army troops from Memphis, Tennessee, during the middle of the night, led by Brigadier General Charles Billingslea...”https://www.blackpast.org/african-american-history/ole-miss-riot-1962/One of the redeeming things about Oswald was his opposition to racism and segregation. But it also might’ve been what motivated him to target Walker whom he viewed as a potential ‘Adolf Hitler’.
As for Oswald’s pro-Cuba activism, he had plenty of opportunities to target anti-Castro Cuban Exiles in New Orleans and Dallas with violence or ‘assassination’ throughout 1963.
If he were so concerned about Raids against Cuba, it seems inconsistent that he would ignore the Cuban Exiles and instead focus on Walker then Kennedy.
Full disclosure, I’m inclined to believe that Oswald was involved with JFK’s assassination (haven’t ruled out a conspiracy) but I don’t know what his motive may have been.
The claim that some obscure news article about assassination attempts on Castro in the Fall of 1963 changed Oswald seems weak when viewed in the context of all the other bad stuff between Kennedy and Cuba that we can be certain Oswald was aware of when he said nice things about JFK.
Also, Capt. Will Fritz says Oswald mentioned that US policies towards Cuba were unlikely to change in an LBJ Presidency...