So I'm a little strange in the sense of I'm a fan of both the Cuban Revolution and Kennedy. In terms of JFKs veneration a large part of course is his assassination. In this sense ironically he's like Che because Ches death also gave him veneration status.

I would say despite mistakes like the bay of pigs and sending advisors to Vietnam JFK does deserve legitimate praise for his handling of the Cuban Missile Crisis, the test ban treaty, his moves on civil rights(late as they were) and other areas. It also should remember that JFKs vietnam policy was actually just a continuation of the Eisenhower policy.