on the contrary, I strongly believe that tobacco companies are the driving force behind the attempts to equate vaping and smoking. idk about the current year, but tobacco companies had little to no influence over the vaping market during its early years. the hardware was 5% American from small companies and 95% Chinese, the nicotine fluid had local producers everywhere because of how cheap and easy it is to make. almost all early adopters were people who wanted to quit smoking, and a lot of them succeeded.
and it's not harmless, sure, but it's definitely less harmful than inhaling combustion products of pulverized tobacco waste glued together with a mix of a hundred mystery chemicals.
Vaping has its share of mystery chemicals too, though
I think the argument is that vaping is far more addictive for young people because of exactly what you say. Does not feel harmful and they end up very addicted at higher doses of nicotine than cigarettes