I'm also alergic to cigarette smoke as well. A great-aunt of mine never smoked, but worked in a greasy spoon restaurant for about 30 years where the customers around her smoked a lot. She had lung cancer that was treated, but it spread into her breasts, then into her lymph system, and finally her brain. Shortly before she died, I saw her. She didn't recognize me, or even her daughter (my aunt.)
As a recovering videogame addict, I can assure you that I know how hard it is to break an addictive habit. It was hard for me to break it; at one point during the summer, that was all I did. However, my family saw that this behavior was becoming bad and helped me break it.
One thing you have to remember about this cartoon is that it was made in 1952. This was long before the sexual and racial revolutions of the 1960's. One could show racist, sexist and otherwise offensive stuff to kids (except anything sexual in nature) and get away with it.
Fortunately, we have progressed beyond that.
Eta: I know of a group here in Texas called Anime Hell that shows stuff like this and mocks it. I'm gonna forward that URL to them and see if they'll do this.
Oh, something else...
The first report to link smoking to cancer was done in 1895. That was four years before the invention of aspirin. The tobacco companies repressed this information until 1965, when Reader's Digest refused to play along and published the results of another study that linked smoking to cancer.