Commerce requires a stable legal framework within which to flourish. If you don't believe me, look at Russia. If every State decided to go after every manufacturer of a product that might have caused harm to their citizens, the Courts would be mighty busy, indeed. Twinkies make people crazy. Television fosters violence in our kids.
Pornography breeds sexual violence.
Sue the bastards. Sue them all, and when nobody is left the States can sue each other for killing their tax base. All rights reserved. Simply insert your own values between the double-quotes.