I dunno. It's growing pretty quickly globally.

https://www.grandviewresearch.com/industry-analysis/e-cigarette-vaping-market

The global e-cigarette and vape market size was valued at USD 22.45 billion in 2022 and is expected to grow at a compound annual growth rate (CAGR) of 30.6% from 2023 to 2030. The public's growing understanding of e-cigarettes being safer than traditional cigarettes, particularly among younger people, due to numerous studies conducted by medical institutions and associations, is forecasted to fuel market growth. In addition, it is anticipated that the manufacturers’ wide range of customization options, including temperature control and nicotine dosages, will help the product demand. Moreover, growing e-cigarette technologies like pod systems and squonk mods have gained popularity and user adoption in recent years.

Market size value in 2023

USD 28.17 billion

Revenue forecast in 2030

USD 182.84 billion

The anti-smoking movement -- at least in the US -- didn't center around nicotine addiction, but around the negative secondary health effects.

Any similar secondary negative effects for vaping are pretty limited. So it's arguing just against the addiction alone. And I'm not sure that that's an easy case to make.