What are we doing to address the nation's ongoing caffeine crisis?
You seem to have a particular fixation on nicotine and haven't taken an opportunity to look at any of the counter-evidence a dozen different people in this thread have tried to show you. The primary enemy here is inhalation of combusted materials, followed by inhalation of just about anything, followed by nicotine.
Cigarette smoking is a crisis. People applying nicotine patches will almost certainly never be a crisis. Trying to conflate the two, as you're doing, doesn't make sense. Trying to conflate tobacco smoking and nicotine vaping is slightly less senseless, but still irresponsible.
There absolutely is a massive risk of people who've never smoked starting with vaping and then moving to cigarettes, but you're only falling back to that as a motte to your "nicotine is a harmful molecule" bailey and aren't making it the center of your argument.