Comment by jcranmer

This bill is likely based on the same sort of scientific knowledge that leads people to recommend drinking raw milk. The litmus test to use is if it is banning fluoridation, or if it is reducing the maximum allowable amount of fluoride in the water to something below 0.75 mg/L (the current EPA limit is 4 mg/L).

I haven't been able to find the bill text here, but I am virtually certain that it's the former case, which tells me that they're not actually motivated by the supposed harms of fluoride in the >0.75 mg/L range.