> first would be every ideological 2nd amendment supporter

Owning a gun doesn't break the government's monopoly on violence because owning a gun isn't violent. Firing a gun at a shooting range isn't violent. (Most people don't consider hunting violence.)

Reasonable 2nd Amendment supporters grant the state its monopoly on violence. They just want the means by way to revoke it. (Or, more realistically, make its abuse more difficult.)