I agree with a lot of your points. I'm on a similar boat that based on a past experience I have had coupled with certain lines of evidence that I have enough data for me personally to lean towards existence. With my current belief, if "science" officially acknowledged them I would be satisfied with those results sans a body.
On a site like the BFF when discussing the discovery of BF I assume we are talking about the "scientific" body as a whole coupled with the government and general lay persons stance on the subject. On that playing field my personal journey concerning BF and what it takes to convince me is irrelevant. I stand by the notion that it will take a body on a slab to break this thing free officially. Its very much an uphill battle for reasons you listed above and there will be obstacles, nonetheless I believe there is only one solution for those that do not already hold a belief in BF, a body.
I don't agree with that, either. I see no rationally supportable basis to claim there are more, or there are less, or there are the same number. So I won't. I will say "we don't know". Along with that, I'll say anyone claiming anything specific about increase, decrease, or steady numbers of sasquatches is pulling garbage out of thin air. The ONLY correct, supportable answer is "we don't know."
MIB