Occasionally smelling my poop won't harm you neither, shall we presume based on your words you shall be fine with it in any public occasion? And well if you don't like that you can stay comfy at home too, right.
Because you know, to most non-smokers we would prefer smell of literal manure to what smokers of cigarettes produce.
And no amount of whataboutism about car fumes is gonna change that, thats a poor attempt to diverge conversation.