And the people that choose to work at a location where asbestos was put in 40 years ago are responsible for their own cancer deaths, correct?
No, They are not responsible - as they didn't know about it.
Choices only give you responsibility if the data you based the decision on was accurate. The Tobacco business lied and continues to lie (although their recent lies are more subtle). Even if they didn't intend to outright lie they advertised which is at best a presentation of a one sided argument, if not an actual lie. By doing that they accept more responsibility - which is why we restrict their advertisements.
And that's not the only 'problem' with your logic. It ignores the addictive nature of the product - and the steps taken by the business to increase the addictive properties.
Few people, if any, have made a well informed, decision to smoke. Most were made by children, most were made before the industry admitted the dangers, most were made unaware of the addiction risks. All of this is by explicit design by the manufacturers. They eliminate your knowledge, and they incur blame.