Shit comparison. One can simply walk past or through a picket line and into the buisness and have your transaction. I have done it before...and would do it again.
Want to protest, hold a sign, get some light cardio marching in a circle chanting catchly slogans? Go ahead!
Want to get in my way for doing buisness? Then fuck you and the horse you rode in on as you are not going to waste my time and money with your "cause."