Without Sci-Hub and Libgen, I literally could not have completed my PhD thesis. My University's system's to access papers was broken, and so time-consuming to use, that it made accessing papers nearly impossible.
I'm as anti-piracy as they get, but in this case, Elsevier does not create anything, and adds very little value. As someone who publishers papers, I do not want a company selling them. I am not compensated. My university is not compensated. The editors of the publication are not compensated.
There are some a few cases where journals have legitimate expenses. And in this case, those people should be paid. But generally, there are no costs to review and publish academic papers. And it goes against the spirit of science to impose them on readers.
As a music producer, the situation is very different—we all want (and need) to be paid for our work—the artists, engineers, producers, record labels—everyone involved in the process of creating and delivering music.
But as a scientist, this is bullshit.