I don’t claim to understand the details of what is behind all of it.
I can just use logic to observe the outline of it.
It was easy enough for the powers-that-be to silence Snowden/Assange/Yeakey/Webb/Rich. Why in world do you think they wouldn’t do the same thing to a UFO whistle blowers?
You are seeing half of the picture—the human lies and deception.
Once you can also see the other half everything starts to make sense—which is the aliens are real.
One place to start is Richard Dolan. He is a professional historian who has been working this issue for decades.
Two of his older books that imho are the textbooks for the history of this topic:
https://www.amazon.com/UFOs-National-Security-State-Chronology/dp/1571743170
https://www.amazon.com/UFOs-National-Security-State-1973-1991/dp/0967799511
If you prefer videos he has a lot of them, some short summaries and some long discussions:
https://www.youtube.com/channel/UCnaIeNm-jSa1l8yHrn7PlQg
He also created the term “Breakaway Civilization” a couple of decades ago.
Once you “get it” on that concept everything starts to make sense.
“Why in world do you think they wouldn’t do the same thing to a UFO whistle blowers?”
You can’t get whistleblowers off your mind? The percentage of whistleblowers involved in the UFO events, as opposed to the millions of routine observers, is almost statistically nonexistent. I myself have seen things, have talked with airline pilots who have seen things, military personnel who have seen things, etc. If whistle blowers were all we had, it would be a non-event.