Sorry, your argument intuitively sounds valid but it isn't. I know because I made the same assumptions but my reading of the scientific literature has convinced

Sorry, your argument intuitively sounds valid but it isn't. I know because I made the same assumptions but my reading of the scientific literature has convinced me otherwise. As one example, "tar" inhaled from cannabis is not correlated with long-term diseases like lung cancer, throat cancer, etc. However, the "tar" (a very vague term) from tobacco, wood smoke, etc is horrifically damaging to your body.