To start, this is a great summary of where things stand. It's easy to see you put time and effort into it. I haven't been paying much attention lately so it's nice to get a feel for what's up. Thanks.
Nowadays, however, with Trump being elected (twice!) and "fake" news, and all facts being considered as suspect, social media, and the "democratization" of information, everything is up for grabs in the media environment, thus most people now will just shrug their shoulders at the idea that a major country's legislative body has spent time listening to ex-military officials from the executive branch give testimony about programs that have found real UFOs, NHI, retrieval and reverse engineering programs. — schopenhauer1
A prominent philosopher, S. Chopenhauer1, provided evidence today that Donald Trump is a space alien... Never mind.
Back in the early 2000s, as the Iraq War spun up, I came to an understanding that truth is just whatever you can convince people of. We've gone beyond that - now no one can convince anyone of anything. My suggested response to is to just stop trying. To the extent possible, avoid issues that are as tangled up as the UFO business. Just let it go. Don't resist. Let people get it out of their system. Of course, there are lots of issues we can't do that with, but as far as I can see, this is not one of them. Some additional thoughts, clearly not all of them are original.
I am not certain about anything related to UFOs, but the thing I am closest to being certain about is that no government agency could keep a secret like this for 75 years.
People make things up, misapprehend things, and come to believe things that aren't true. They don't have to be dishonest to get it wrong, but they might be. I recommend a book by Martin Gardner, "Science - Good, Bad, and Bogus." It's from the late 1980s, but I think the stories Gardner tells are still relevant. It's about people, both frauds and gullible but honest advocates, making claims about extraordinary phenomena that are not adequately supported by evidence. Subjects covered include UFOs, ESP, bad science, and other fringe issues. The second edition came just too late to include cold fusion. One of the main points he makes is that scientists are often more gullible than laypeople because they have such confidence in their ability to observe and reason.
I love the fact that a big part of the government's solution is to rename UFOs and start another new agency.
Of course the irony is that the government could address a lot of this by opening their files. Are their still secrets about events in the 1940s that can't be disclosed for legitimate security reasons? Perhaps. Of course, they've sort of, kind of done that by letting congress have hearings. As you note, that hasn't really resolved anything.
However, the counterargument is that the Congress members themselves are fringe cooks willing to entertain sensationalist bullshit. — schopenhauer1
I remember reading about a Congressional hearing on climate change. A NASA scientist was describing the physics, astronomy, and climate science related to global warming when he mentioned in passing, and I'm sure to his instant regret, that if the Earth were just a bit further from the sun, warming would be addressed. A Republican congressman spoke up and asked why we couldn't direct the Bureau of Land Management to move the earth a bit further out.