The further that researchers go in creating self-sustaining intelligent systems, the more questionable it will be to create an ethical sex robot—not from the point of objectification, but from the point of agency.
(You can read the research paper for the specifics.)These arguments address what sex robots mean for us—whether their existence is degrading to humans.
But there is another huge problem yet to come: Should we be building intelligent machines, then refusing them agency?
While philosophy papers, blog posts, and sci-fi novels have asked the big questions about sex robots, this seems to be the first dedicated campaign of its kind.
But as Richardson points out, now is the time—as with all emerging technologies, sex would come to robotics sooner or later.