Nobody relinquishes power willingly.
I think that this is true even if you're a puppet. So we can safely assume that, if the assassination of JFK was faked, it must have happened with the reluctant collaboration of JFK himself.
Stay with me on this one for a few more lines:
Let's assume JFK was told: either we take you out, or you pretend to be taken out and disappear to Argentina (or wherever) like Adolf Hitler.
Fine. Facing the possibility to be actually killed, the rich white boy would accept to fake his own death and disappear.
But then Culto makes assumptions in that thread that would require not only for JFK himself, but for his wife, aides and all to rehearse over and over the killing in order to make it look legit to... to whom? A planted cameraman, Zapruder, the only one who actually came back with some film?
Then they would have the film surface, clearly doctored, but not enough to cover up the errors, years and years later...?
Why rehearsing so hard to fake something that is not at all documented if not for one very suspicious tardy piece of film and a couple of "before" and "after" pictures?
I mean, everything is possible but if the killing has been faked and staged (requiring as I said to rehearse for it with fake blood cartridges and fake reactions of fear and fake dying and all), I think they would have profited from it much more extensively --or else they would have made it simpler (or a completely undocumented event, with no need for anyone to act out anything, especially not your VIP victim).
Different idea: Maybe Zapruder's film is really fake, but just in the sense that it features actors (and not really JFK et al.), and was filmed later, maybe in some Hollywood studio, just to give some confusing, morbid material to the public and keep the psyop alive in occasion of a minority trial.
With this interpretation, at least I don't have to imagine JFK and wife rehearsing over and over for a mock-killing, which is something that really bothers me, because I don't think they would have subjected themselves to it.