Should we also stop adding iodide to salt or fortifying white bread? I see your point, but society has benefited as a whole by forcing some of these substances onto populations. I think it's fairly evident that many humans in the US are either unable or unwilling to really care about their health.

Bad analogy. Fortified food provide nutrients to supplement what you get from other foods. One can simply choose to buy white bread that's fortified, or whole foods that have those nutrients naturally.

You can't avoid water for too long though. Ingesting whatever is in the water supply is mandatory. I can't avoid flouride in my water any more than I can avoid Nitrogen when I breathe. I have no choice in the matter. It's the lack of choice that many object to, not the health effects of flouride per se.

Personally, if given the choice, I'd probably still take flouride. Having it in the water is convenient. Mandatory, but convenient.

Folks who don't want to drink flouride can use a reverse osmosis filter or drill a well.

You could also buy oxygen generators to avoid breathing as much nitrogen, but that's probably not a great idea in the long run.

It's also extreme individualism we've all been indoctrinated with and which is turned up to 11 in the US.

But uninformed consent to having you remove a necessary mineral from the water supply is fine?

If you are worried, you can get a gravity filter and take it out yourself.