If you get a single cent for your study from tax payers, the tax payers have a right to see the results, with no barriers to access.
The share restraint is usually on the edited version journals provide, which frankly, after working on several published papers, isn't much from my experience. The editors don't really prod the theory, methodology or data -- just grammar and formatting (nice but not critical for the science).
https://www.nsf.gov/pubs/2018/nsf18041/nsf18041.jsp#q3
It is notable that these requirements from NSF and NIH have not eliminated many of the complaints about the influence of closed-access journals. Presumably this is because the real issue are the incentives researchers face to publish in such journals regardless of whether they are also publicly available. (Indeed, the vast majority of researchers already have institutional access to closed access journals, and the degree to which non-researchers read research is negligible.)
For some scale: The NIH funds $39B in medical research
https://www.nih.gov/about-nih/what-we-do/budget
The NSF does $7B
https://www.nsf.gov/about/budget/fy2018/
Total funding in the US for basic research (which I think includes about $5B from NSF and $15B from NIH) is $86B
http://www.sciencemag.org/news/2017/03/data-check-us-governm... https://www.nsf.gov/statistics/2017/nsf17316/
Copyright law certainly has major issues, I'll agree, but it does not prevent you from sharing things if you want to, provided you created them or own them.
Fun fact: in many places, you actually can't. You can sign over copyright to someone else, or you can give anyone permission to do whatever, but many legal systems have no concept of "disclaiming copyright". You have it, whether you like it or not. This is why it is frequently advised against putting "I put this code in the public domain" as your open source licensing term. It has no legal meaning in many places, which means that it's not properly licensed at all (i.e. full copyright applies).
I do release everything where I have copyright under free/libre/open terms. But that's not enough to cover the concerns I'm referring to.
I'm saying copyright should be eliminated because it's in the public interest to have more open access (both plainly and for derivative use) to all resrouces
If you give your car away to someone else, why would you be mad that you can't just use it at random times?
The authors have had the solution in front of them from the beginning. They've been free to send out free copies from the time they finish.
But if they want the advantages that come from journals, well, someone is going to need to pay for them.
So let us create a website that for a given paywalled URL automatically emails the authors for a PDF. ;-)
Who's going to pay for the layout and editing and filtering? The people at Elsevier do something for their money.
I'm happy with going to all author-circulated preprints, but I'm afraid that all of the archival work of the journals is a pretty good thing.
I'd gladly pay a one-time fee for a good editor to bring a paper into a better shape, to cover these costs.
Coordination and archiving are valuable, but don't match the prices asked by some.