Building the walls is like posting a big sign that says if you want good stuff and guns, come on in. When you wall yourselves off it makes it easier to keep an eye on you, and you are free to do so actually. And if you think you have protected yourself well behind the wall, that big black guy at the gate with the gun has friends and cousins, just like the little brown fellows who keep the lawns nice and neat who have lots of cousins. When the world starts to crash, they have the access codes. Sleep tight, for now.Our society is full of walls, cops and security perimeters that protect the elite from the rabble, not going to find a lot of liberals who will defend them, that's more of a conservative thing.
The nice thing about access codes is they can be changed in an instant. Private clubs by their very nature are not open to the public and not subject to public accommodation laws. Private communities are not subject to public accommodation laws. Private communities are even getting more private with residents voting on who to admit as a fellow resident.