How facile.
The VIOLENCE? Oh, for crying out loud. As long as anybody can legally cross the border into New Jersey or Connecticut (or hell, even Yonkers) to buy cartons and then bring them back and sell them in NYC to your own friends and coworkers without anyone really noticing (a carton of smokes is a carton of smokes and will not inherently raise suspicions, unlike someone standing on a corner offering little tiny plastic bags filled with powdery substances), there aren't going to BE any turf wars. The product is LEGAL. This is merely a matter of economics 101.
I suppose if the Mafia were to get involved and start hijacking some of those vans filled with cigs from Virginia or North Carolina, you might get a little "violence", but that would be a false argument too because the Mafia's going to get involved in whatever's available, with the same outcomes no matter what.