It's not available in scihub too.

If someone were prosecuted for pirating research papers which they, as someone who pays tax in a country which funded that research, have any likelihood of success in using that point as a defence? Or if they made the paper available to residents of that country?

Am sure corporate interests & standard neoliberalism would move swiftly to stifle any such angle of attack, but still.

Whatever about anywhere else, within the US, the foundational concept of no taxation without representation could apply here without much stretch.