There's a certain irony in the fact a feature supposed to improve safety actually made an already dangerous thing massively more dangerous. That's got to be the most cancerous product ever brought to market that didn't outright irradiate its user.
E.g. Radithor https://en.wikipedia.org/wiki/Radithor
At one point, consumer groups, Ikea, and fire fighters were all lobbying California to get rid of them.
They partially succeeded. If you have a couch / pillow / etc with a California label saying it contains flame retardants, immmediately wrap it in a plastic bag and send it to the dump.
California required more flame retardants than anywhere else on earth. Cats in California started developing previously unseen forms of cancer as a direct result.
Non-filter cigarette smokers are 40% more likely to develop lung cancer and almost twice as likey to die from cancer than filtered cigarette smokers.
*https://www.abstractsonline.com/pp8/#!/5789/presentation/230...
I wonder how many people want THC but never wanted to smoke in the first place?
And unlike tobacco, safer alternatives exist -- vaping doesn't require combustion, and edibles obviously carry no risk from inhalation.
Inhaling that amount of burnt stuff regardless of source is just not good for you.