I've tried for so long to convince myself otherwise...but I can't argue logically with your point. Those who fail history are doomed to repeat it. Simply put, bans of any type do not work. Prohibition, drugs, prostitution, et al. It only drives the market underground. I find it hard to believe that so many college educated politicians can't see the trend. The street gangs laugh at these laws. They will continue to get their guns...same way they get their drugs. They will find a way, just like Al Capone and prohibition gangsters did.
IMHO, This entire gun control charade is designed to take the guns out of the hands of anyone who is a potential political enemy of the present administration. There won't be any concerted effort to take guns/ high capacity magazines from law enforcement or the bureaucrats armed bodyguards. NY will simply amend the just passed law to exempt all law enforcement from the ban. The gangs will continue to be as well armed as ever. This is all about disarming the masses who are presently a threat to the present administrations agenda of "Change".