So you think people doing something LEGAL deserve to be harassed because there are some in society who fear firearms? By this logic you also think it is ok to call the police and have the group of black guys walking towards you on a public street should also be stopped and harassed because someone had a irrational fear of them.
I agree with the OP. If you walk into a room with 100 people openly carrying a gun on your hip, YOU AND ONLY YOU know you're doing everything legally but how are those 100 people supposed to know you're carrying legally or if you're another nut job like that movie theater guy??
Same scenario but you're already in the room with those 100 people and a couple "bad guys" walk in with the intention of doing bad things and they see you in your civilian clothes with a gun on your hip who do you think they'll go after first? I would much rather prefer keeping the element of surprise on my side. It ain't about being harassed for doing something legally..in this day and age everyone is on edge with all the craziness going on in the world and I would rather avoid the BS by carrying concealed.