The Dhampirs on Mars were currently residing in the area governed by Pure, enjoying their protection. They weren't an officially recognised group that the people supported per se, most likely because their only goal appeared to be to get rid of all the vampires, without any care for politics, much less the well-being of the normal people.
Compared to the areas owned by the Green family and the Vampire Corps, Pure's areas seemed to be far calmer. There were less city-like structures and more residential areas to them. There were houses, and much greenery in between, with many humans enjoying a nice lifestyle. Of course, many of them were Pure members who worked important jobs that benefited the group as a whole. However, the labs and facilities were far away from the living areas.