Do you think that it's normal that James Files accuses himself of killing JFK, and nobody believes him?
Only in America confessions to murder are ignored.
The only place in the world.
It's not normal.
There were at least three shooters. One on the grassy knoll. One hidden among the trees. One in the depository.
I'm not sure about Files, although I knew a guy who was convinced that E. Howard Hunt (of Watergate fame) was the shooter on the grassy knoll (he said one of the transients caught in the railroad yard behind the grassy knoll bore a strong resemblance to Hunt). I've also read that Hunt himself allegedly made a death bed confession to killing JFK.
The truth is that some Americans will never believe that their Government is made up of people who are ready to hire hitmen to eliminate opponents.
With this psychological bias, there's no chance of having a debate.
It largely depends on the timeframe we're talking about. If we're talking about the early part of the 19th century, when guys like Andrew Jackson were President, it can be said that our government's character was not that much different than that of the imperial powers of Europe at the time - aggressive, warlike, expansionist, nationalist, racist. Even the ending of slavery didn't really change that fundamental character of our government and political culture.
Ironically, the now-maligned and discredited "Lost Cause" version of history was also a factor in whitewashing the U.S. government and transforming it into the paragon of virtue which many people view it nowadays.
World War 2 and the transition to the Cold War seemed to be the major game-changer in how the people viewed the government. The government itself also apparently underwent its own image changes, as image became all-important in the eyes of America's leadership as it sought to expand its influence in a world which had been racked by World Wars and the disintegration of the European colonial powers. Culturally, the Hays Code had strict standards as to what kind of imagery would be considered acceptable to the American people, as part of what appears to be a general thrust towards improving America's image not just with Americans, but with the entire world. This was because we were struggling to gain hearts and minds from those in the former Colonial world and try to woo them away from communist agitators.
Our government's obsession with image has been their primary weakness. It was their inordinate attention to image which caused them to lose Cuba and Vietnam, two enemies which we could have easily defeated if we wanted to, but our government obviously didn't want to because it would have been bad for their image. It's for much the same reason that we see many people responding so vindictively and viscerally to what they see as attacks on the image and reputation of the U.S. government (aka "conspiracy theories"). Many act like Mafia attorneys, struggling to find loopholes and falling all over themselves to try to discredit any and all pieces of evidence which might harm the image of the US government.
One might well wonder: Why would anyone care so much about the reputation of the US government as to become so obsessive about wanting to defend its image no matter what? That's what's always floored me about the anti-CT crowd. The question of "who's right" is overshadowed by which side seems to be the most obsessed with wanting to advance their viewpoint.
For my part, I really don't care about the image of the US government, and even if I did, I would think that the US government is big enough to defend itself.