This is one of these US-specific polarised debates I find really bizarre, around some kind of issue that the rest of the world has by large solved but without any acknowledgement of this fact. Maybe the US should look into how other countries have solved it? It is completely bizarre witnessing both sides getting so polarised around a basically non-issue.
I'm skeptical of results showing IQ loss but I also think fluoridation should be phased out as fluoride toothpaste and mouthwash are now widely available. Banning it seems like the wrong move to me...states should simply decide to continue adding it or not.