From what I've gathered in the dreams? Which, those are a doozy. We've got abilities. Part of some weird... superhero thing, I guess. The Umbrella Academy. We've all got tattoos too, which happened to show up out of nowhere from a dream, but that's beside the point.
So, we're more like experiments to him than we are human, really.
I'm not sure how I'd feel about something like that.