The only reason I'd like to see soda sales taxed here is that because as it is now, it's a "food" and so it can be bought with food stamps. I honestly don't care what adults do to their bodies, but since children drink a lot of soda, I'd like to see that curbed even just a little.
I understand it's a slippery slope. I want soda in the non-food category, someone else wants coffee categorized non-food, etc. And I know that when all is said and done, sales taxing soda won't help children who have parents that either can't say no, or don't know enough to say no.
"Right is right, even if no one is doing it; wrong is wrong, even if everyone is doing it." - St. Augustine