Even if we assume all of those are nefarious, that is much fewer people over a much longer period. If you have to add "probably many others", it feels like you are just extrapolating in your favor without evidence.
For a lot of these cases, there's really no way to definitively prove either way, so, the fact that with the same set of basic facts, different conclusions are reached, using different words, doesn't instil objectivity to the process.
Comparatively, faith in American institutions was only recently shaken by Watergate and the Iran-Contra affair, neither of which were even that bad in a relative sense. If the Clintons were tried and prosecuted for murder then you wouldn't have to label your words as a conspiracy theory, but for now that's exactly what they are. And to be honest, the evidence today doesn't feel any more convincing than the same shtick I heard 15 years ago...