Yes, Sci-Hub has been a great boon. It's still not a sustainable long-term solution though, and not only do we need to abolish copyright for existing published

Yes, Sci-Hub has been a great boon. It's still not a sustainable long-term solution though, and not only do we need to abolish copyright for existing published work (whose copyright will already eventually -but only after far too long a time- expire), but also make sure that future published work will become immediately available to access and re-use. That's what this is about. (Note that Plan S was initiated by governmental organisations, so there's the governmental intervention for you.)