"I guess I reject the notion that since you don't like/use it, no one does."
No one's really said that. People say no one uses G+ because, relatively speaking, almost no one uses G+. It may be awesome, it may be the greatest thing since sliced bread and in fact almost every review of the UI has lauded it from what I've seen but the flip side of this is tools without community are useless. Whether G+ is dying/dead/a ghost town is a real discussion that can take place.