Simply put- it seems people just dislike smoking but will make exceptions for their preferred things like weed, etc.

Your original post mentioned cigs specifically, not tobacco generally. There are health risks of all ways to consume tobacco but those risks are not equal. A ban cigs but not on vaping or cigars (which are not generally inhaled) would act against the most harmful form without cancelling the whole substance and experience categorically.

There will be a small black market for cigs but if vaping is not banned then many will be steered toward vaping instead. The vaping option will keep the black market on cigs small.

If that was truly the goal then why not just ban carcinogens in cigarettes instead?

There is no such chemical as “carcinogen”. It’s just a vague term for anything that is linked to cancer. There is no proof at a molecular level that cigs cause cancer. It’s still not understood. We have overwhelming stats that smoking cigs have an undeniable link to cancer, but the science has not yet yielded detailed results on how cancer manifests in a cell. Stats are all there is.

If we fast-forwarding into the future when a cellular understanding is obtained, the intake method will certainly be part of the equation, not just the substance. AFAIK, the only cigar smokers who get lung cancer are those who smoke cigars improperly (by inhaling them). I lost 2 friends to cancer because of that. They loved to inhale cigars. Those who smoke them as intended (like myself) are not much more likely to get lung cancer than a non-smoker, IMO.