Yes but they are not all equally bad for you. This is not debatable. Its self evident.

Cigarette smoke is not equal to pure tobacco smoke which is not equal to marijuana smoke.

All these false equivalencies. Its irresponsible and flies in the face of reason.

It is self evident that tobacco smoke and cigarette smoke in particular cause cancer.

You dont have to be in medicine or read pubmed to know this. We have real world examples all over the place.