Nicotine is somewhat addictive. It's not that bad on its own. Quitting nicotine vapes was about as hard as quitting caffeine for me.
I believe in an adult's right to choose, and harm reduction. The government isn't here to tell us what's morally right and wrong, it's here to define our rights and privileges. It's fine to restrict where one can smoke or vape because that involves other people. I think it's a waste of government resources to try and tell people what they "ought" to be doing with their own bodies (because they will never succeed, and it's not their job.)
This line of argumentation is deranged.