Some communities have a naturally-occurring fluoride level higher than the amount that is added in other communities for tooth health. (As described at your link, these places see some cases of fluorosis, but no one dies of cancer.) That is, only very small non-toxic amounts of fluoride are ever added. These amounts have radically improved the oral health of children in those communities. Poor children, who have little access to dentists in red states, would be especially harmed if cranks have their way and fluoridation ceases.

Let me guess, you also don't want iodine to be added to salt?

https://www.ada.org/resources/community-initiatives/fluoride...