Show me where in the US Constitution (or any of the State's Constitutions) where they are granted the power to enforce the whims of those currently in power. Certainly, some states have passed "laws" or even "amendments" that are diametrically opposed to their original constitutions and there has also been much legislating from the bench, however, when viewed in terms of the protection of the rights of the individual (which ALL of our constitutions were created to do), these "laws" actually become "non-laws" as they are clearly UNconstitutional. Democracy is nothing more than mob rule and is EXACTLY why Benjamin Franklin called it the most dangerous form of government he could think of. People such as yourself, on the other hand, seem to have no problem with government enforcing your WISHES or DESIRES at the expense of your neighbors. I fear that by the time you wake up to the dangers of forced political correctness and behavior modification that it will be too late for us all to do anything about it without serious consequences.
Lets think about this thing for a moment. To me, it would only be common courtesy, i.e. manners, to forego lighting up if doing so would be dangerous, or even objectionable to others. A public place is a public place. A private establishment is still open to the general public. If people exercised common courtesy, this whole conversation would be mute. But, we are no longer a polite or courteous society. That is why laws must be sought to ensure common courtesy. It is stupid, is it not? But, obviously, it has to be done.