Meanwhile there’s a great body of research showing fluoride has a significant impact on cavity reduction. http://en.wikipedia.org/wiki/Water_fluoridation#Evidence_basis
“A 2000 systematic review found that water fluoridation was statistically associated with a decreased proportion of children with cavities (the median of mean decreases was 14.6%, the range −5 to 64%), and with a decrease in decayed, missing, and filled primary teeth (the median of mean decreases was 2.25 teeth, the range 0.5–4.4 teeth),11 which is roughly equivalent to preventing 40% of cavities.”
I agree, only really stupid parents would vote against something with no ill effects that protects their children. Probably the same crowd against vaccinations.