They are entitled to call themselves Rangers although when in the Army, they would almost certainly call themselves tabbed, and more relevantly, especially after being out of the service and talking to a homeless vet, as the opening line to a conversation.
I understand that, I’m just going by how we differentiated those who just went to Ranger school, and those who served in the Ranger Regt or Ranger School Cadre. That being said, my utmost respect to most of the guys that did one or the other, or both. As this assclown has demonstrated, we get our dirtbags too, though we try and weed them out.