The tone of this article is really frustrating, the author is seemingly living in a self-imposed box in which capital has an inalienable right to rule the world. "owners must be convinced to share" - No sir, they're not kings, nor were they elected into any position, and we don't have to "convince" them of anything.
We need to have a thorough discussion about what a future without human labor should look like, and whether we really want to live in a dystopia when the only thing preventing us from living in a utopia is the ego of a few rich assholes.
One way or another they will lose their kingdoms because they don't actually have an inalienable right to control the world's resources. They only had these ownership rights because they were [thought to be] good for society as a whole. In a robotic AI future that's no longer the case and those rights will no longer exist.
The only question is whether this transition will be peaceful or extremely violent.