They stink.

Depends on how often they smoke and bathe. Hams are much worse.

They're a burden on the health care system.

Their early deaths end up saving medicare money.

They ruin cars/furniture/houses.

Don't buy from them then.

You hate to see one with kids.

Most smokers I know with kids don't want their kids smoking, they realize it's a terrible addictive habit. Which is the opposite of fatties turning their kids into gluttons because muh genetics.

They are willfully damaging their health/bodies.

They aren't in denial about that though, unlike most hams.

Don't get me wrong, smoking is a terrible habit but it pales in comparison to gluttony.