That would make too much sense. The anti-smokers would just tell you that if you don't want to breathe second-hand smoke, quit using nicotine. That's the problem with the antis. Those who are the most threat to vaping are not just anti-smoking, they're anti tobacco/nicotine.
As for fighting for the right to clean air, I'm afraid you'd be met with the same retort. No one is forcing you to hang out with the smokers. Just quit your nicotine use, or go vape over there, away from the smokers, by yourself. Of course, the idea of 0 nic vaping would never occur to them.
If it was as straightforward as a right to clean air, it would be easy. You could file suit against any municipality that forced you to vape with smokers.
That approach might work with normal non-smokers, but those aren't the people we need worry about. Those people are easy to educate. They're the ones that listen. The mere sight of something that looks like smoke coming from your mouth doesn't send them into a rage. Fortunately, they outnumber the ANTZ (anti nicotine and tobacco zealots) by a long shot. That's why it's important to vape in public. The ANTZ have had some success in turning non-smokers into anti-smokers. Once they convince a non-smoker, or ex-smoker, to become as zealous as themselves, there's nothing we can do or say to change their minds. We have to get to them first. We have to immunize them against the ANTZ propaganda. We have to prevent a non-smoker from becoming an anti-smoker and then a ANTZ. To do that, you have to catch them in the first stage, when they will listen to reason and might even have smoking loved ones they'd like to help quit without necessarily demanding they go totally nicotine free.