We all know how well anonymous donations work, especially when nobody is looking.
As far as BLM becoming a police state, I've been backpacking in the Sierra's for over 35 years. I pay a fee (2 to $5)to reserve my spot on a trailhead as well as an entrance fee to National Parks (Yosemite, Kings Canyon = $20).
I didn't even see a ranger this year for the week I was out. Neither fee has went up in a long time, but like milk and gas of course it will go up eventually. BLM is not National Park or National Forest, but of the three BLM has always been the most lax so I find it hard to understand the paranoia.
I also pay a fee to use county and state parks, and those lands seem function. Although, in CA when they want to focus attention on budget deficits the State threatens to shut down lesser used parks.
I'm NOT saying I like to pay for things, I'd prefer they be free! But, I will acknowledge the need for a rational discusion on cost/benefit.
FYI, regarding "let someone else pay" or "let someone else take care of it" something to Google and read up on:
The tragedy of the commons
is a dilemma arising from the situation in which multiple individuals, acting independently and rationally consulting their own self-interest, will ultimately deplete a shared limited resource even when it is clear that it is not in anyone's long-term interest for this to happen. This dilemma was first described in an influential article titled "The Tragedy of the Commons," written by Garrett Hardin
and first published in the journal Science
I'm not sure how fair or true this article is, but at least it provides some history on use fees.