I think there is a way around this. We have no credibility, we are "addicts." But our FAMILIES can have credibility. If my city tried to outlaw outdoor smoking in the park, and I objected, my family would NOT back me! But if they try to limit vaping, my family WILL back me. This difference in behavior might come as a surprise to politicians and reporters, and might allow us to re-frame the debate as anti-smoking instead of pro-nicotine.
We need our relatives to say "I am not a smoker or tobacco user, and I want you to know that my loved one is safer now, and safer to be around, now that she has quit smoking with e-cigs. Please help keep the focus on NOT lighting things on fire, NOT leaving cigarette butts around. Treating smokeless alternatives the same as combustibles sends a message that deadly smoke is no more dangerous than things that have the same risks as nicotine patches and gum -- that is the wrong message to send to the public, and especially to smokers who might be thinking of quitting with e-cigs."
Or they can quote the American Association of Public Health Physicians:
American Association of Public Health Physicians - Tobacco