People ruin their lives pretty well currently with highly addictive drugs, and I don't see how increasing supply would stop that from happening.
You can be clever that sticks kill people all you want, but that's completely sidestepping why people are worried about drug legalization: many drugs have extremely well documented negative effects on people, and these effects end up affecting others as well (hence "no smoking in public places'-style laws), and it has a real cost to society (hospitalisation, and just the human cost). Last I checked Sticks aren't that costly to civilisation in recent times.
Trying to be clever with semantics won't convince anyone of anything.