Smokers versus Non Smokers

I have heard people that have had little to no compassion for when a smoker comes down with a serious illness that is likely related to smoking ... such as cancer, heart disease and COPD. The smoker is frequently blamed for their disease and it’s viewed as it being their own fault.

What are your thoughts? Do you have less compassion and empathy for an individual who is living and suffering with an illness that is likely linked to their cigarette smoking versus someone who never smoked?