You underestimated the risk factor of the delivery method.

Cigarettes are not only cancerous because of the content but also the fact that you're breathing in burnt material.

Nicotine has a threshold for addiction. A lot of vapes go over it. And the companies complain when they are forced to produce nonaddictive products.

More disinformation comes from the vaping industry. How has the finacial incentive to suppress vaping? Even tobacco companies own vape products so they are not being hurt.