2 more things to add to the secondhand smoke analogy:
Measurements of cotinine have shown how exposure to secondhand smoke has steadily decreased in the United States over time.3,7
During 1988–1991, approximately 87.9% of nonsmokers had measurable levels of cotinine.
During 1999–2000, approximately 52.5% of nonsmokers had measurable levels of cotinine.
During 2007–2008, approximately 40.1% of nonsmokers had measurable levels of cotinine.
The decrease in exposure to secondhand smoke over the last 20 years is due to the growing number of laws that ban smoking in workplaces and public places, the increase in the number of households with smoke-free home rules, and the decreases in adult and youth smoking rates.8,9
AND: The deep pockets of the tobacco lobby.
Even if we haven't banned smoking (personally, I feel like smoking around children is abuse), we HAVE made a TON of progress by allowing the government to regulate cigarettes. Don't know if you remember, but tobacco has eaten up a lot of public discussion over the last 20-30 years. Yet it's nearly impossible to implement any regulations at all about guns. Why do you think that is?