When I first saw this I thought you were trying a term for societies that use holograms, but I can't recall what the holo prefix usually means lol, probably whole. Holograms will be big and ubiquitous one day but it is a stretch tying holoculture to hologram use and that's not what you had in mind anyway. It's a weird term since its meaning is not obvious. Once holoculture starts being used more (and defined for the common man) then it'll be easier to sell
Try to develop it with the theme you think most attractive, if you have the time