It gets better. The cops didn’t receive any punishment because the judge said the cops were scared and that it was OK for them to shoot up the car that didn’t match the description (Blue truck versus white / grey, different manufacturer) and contained people who didn’t match the description (Asian women versus black man).
It gets even BETTERER though. That wasn’t the only vehicle they stopped that blatantly didn’t match the description and they still used violence to stop.
Your 3d printer doesn’t have other utilities to accommodate. The printing is basically just the walls. Every other utility (Power, water, sanitary, HVAC, foundations, windows, doors, metal fabrications, networking etc) are all still done by people, all made with options made by other manufacturers.
Your printer also uses quick setting thermoplastic, not a concrete slurry that needs to set over the course of days instead of fractions of a second.
This and typical FDM printing are related, but truths about printing out a plastic trinket don’t necessarily translate to large concrete structures.