I don't hate the sheepdog concept, or really much at all. I think people should be comfortable in who they are. When did being a Man become not enough? Do you think every guy that's joined something distinguishing was any more or less of a Man the day after than he was the day before?
I think we need Father figures honestly. But, that's another topic. Rather than people who don't have a sense of identity so they must do something to be someone. God said I am when asked who he was, he didn't have to explain who he was. Food for thought.
I'm not saying this in a macho way either, I think society really struggles with this as a whole.
1) TEOTWAWKI- Usually goes hand-in-hand with all the bright green zombie crap and tossed around by the fatasses on Doomsday Preppers. The only cool things 'zombie' were the original Romero films and the first Resident Evil. And if you want to survive "TEOTWAWKI," make sure you are in shape enough to run across the street and not collapse in a sweating mound of air-sucking, nylon-clad blubber.
2) Tactical- It's a knife, not a Tactical Folder. It's a light, not a Tactical Illuminator. There is nothing Tactical about the knife clipped inside the pocket of your Tactical Pants. It's a fancy, often overpriced pocket knife. Unless you are working as a team to call out barricaded suspects, serve warrants, rescue hostages or in combat with said knife or light, it's not really all that tactical.
And don't even get me started on the Tactical/Practical ads in the gun rags.
"Booger hook"
While I hate those terms as much as most posters here, I'm not sure I agree with that analysis, because your examples all call upon group dynamics that encourages violence as a group... but not as an individual. My understanding of the paradigm is that the "wolf" and the "sheepdog" are both able to engage in violence alone and without group approval, albeit for different reasons, while the "sheep" generally are not. I agree that exceptional circumstances can certainly compel almost anyone to act with great violence, but the question of just how exceptional the circumstances must be would probably serve to differentiate the average person from those much more comfortable with violence.