Most cancers (there are 100+ types of cancer, depending on how you count them) have nothing to do with tobacco use and have little if any relationship to personal choice or lifestyle issues. Yes, there are some possible correlations between obesity and some cancers, but again there is a vast array of cancers for which the patients bear little or no responsibility in any way for their plight. Thus, outside of cigarette smokers, there is no similarity between people arguing for more funding for cancer research and those who have so distorted public debates over HIV/AIDS funding, etc.
I agree, but I was responding to a smoker.