Actually, one of the first bans on concealed carry was in NYC, and was done to protect the criminal constituents of NYC politician. One of these days, I get around to finding that document again...
Well, yes that was the real reason. But they couldn't actually say that.
Many southern states had bans on concealed carry even before what they call "The War of Northern Aggression". Many of the laws were actually enforced as "carrying while black, or brown) rather than against the white population. Georgia had a statue, overturned by their Supreme Court in 1846, which prohibited the mere sale of concealable concealable handguns, sword-canes, and daggers. The court's reasoning stands as a definitive defense of the right of the people to keep and bear arms.
The right of the whole people, old and young, men, women and boys, and not militia only, to keep and bear arms of every description, and not such merely as are used by the militia, shall not be infringed, curtailed, or broken in upon, in the smallest degree; and all of this for the important end to be attained: the rearing up and qualifying a well-regulated militia, so vitally necessary to the security of a free State. Our opinion is, that any law, State or Federal, is repugnant to the Constitution, and void, which contravenes this right, originally belonging to our forefathers, trampled under foot by Charles I. and his two wicked sons and successors, reestablished by the revolution of 1688, conveyed to this land of liberty by the colonists, and finally incorporated conspicuously in our own Magna Charta! And Lexington, Concord, Camden, River Raisin, Sandusky, and the laurel-crowned field of New Orleans, plead eloquently for this interpretation! Nunn v. State, 1 Kelly 243 (Ga. 1846)