You are absolutely wrong! Your rights do in fact include punching the guy and use of deadly force if you are in a place where you have lawful rights to be and you feel that you are threatened aka assault. Do you think you check your rights at the door when you go to Wal-mart? Do you check them in the parking lot? Howabout when you pull into your own driveway? If the Wal-mart police follow you to your home and then ask to check your bags, what are you going to do? Let them? Only if you are a sheeple. Once you pay at the register that is your property and yours alone. They no longer have rights to the merchandise and they never had rights to your person. End of story.
Assault? By a WalMart greeter? Go ahead, be a badass. Beat retirees at WalMart. Very impressive.