Earlier quoted context omitted.
If a state wants to ban cars it should be free to do so. I think the benefits outweigh the costs and no one would choose to live there. Also important to note no one is banning flouride. They're preventing it from being put in the drinking water. The equivalent would be if cars were distributed upon arriving to the state.
The state is taking the rights away from the municipalities. Why not leave it up to the local people? No one was forcing local towns to fluoridate their water.
I don't know enough to form an opinion about whether Utah's new policy is good or bad, but it is clearly on the side of individual freedom. (of course that's not the only concern)