I’d have a never-ending supply of work

When I was young, I practiced in Delaware County Pennsylvania, which is not fluoridated, and I would see horrors in one day that I did not see in Philadelphia county in years, not once.

for fluoride treatments at elementary school in the early ‘60’s. Then our town started adding fluoride to the water. Not sure what year.

medical advances sapping and impurifying our Precious Bodily Fluids.

AND of course, it's concentrated ! Without the acidity and high concentration, you wouldn't see corrosion or burns (the burns are associated mostly with HYDROGEN FLUORIDE, not fluoride salts) ! That's like saying you shouldn't ingest baking soda (sodium hydrogen carbonate) because the ACID FORM -- carbonic acid -- corrodes marble buildings, given years to work. It's sort of like saying iron is dangerous because molten iron causes severe burns ! Absolutely unbelievable what some people regard as "evidence" and logic.

Fluoride may be FOUND in some industrial waste -- almost every element is, at some point -- but it's a naturally occurring chemical found in a few natural water sources, which is what led to the discovery of the benefits of low doses of fluoride, and some of the minor complications due to higher concentrations. More severe toxic effects are rarely encountered from natural sources in the US, due to the mostly low concentrations found here. Fluoride forms a virtually insoluble mineral solid with calcium ion, which is where most of the fluoride on Earth resides. That keeps it out of most natural waters, since calcium ion is ubiquitous in nature. Municipal water supplies test for natural fluoride, but those who rely on well water must take their own precautions. In areas where groundwater percolates through volcanic rocks, fluoride levels may be dangerously elevated -- apparently this is very common in some parts of India and China, where people rely heavily on untreated, or poorly treated, groundwater. Volcanoes are responsible for much of the soluble fluoride on the surface of the Earth; fresh eruptions or outflows can raise fluoride concentration to unhealthy levels, but older volcanic formations are likely to be depleted in fluoride through erosion and percolation. Fortunately, we're not Iceland.

The old saying "the dose makes the poison" isn't always all that true, but it certainly is with fluoride. It takes less than 1 ppm (part per million) of fluoride to protect teeth, but several ppm can cause mottling of teeth. Still higher doses cause more serious problems, but unless you work in a chemical plant or live downwind from an aluminum smelter, it's excruciatingly unlikely that you will EVER encounter higher concentration of fluoride than found in treated municipal water supplies. Saying fluoride is "associated with" so many conditions is true weasel language -- HIGH DOSES can certainly contribute to all those conditions, but 0.7 ppm isn't going to do it.

Ironically, the benefits of fluoride do not appear to have any evolutionary basis: there appears to be no process of natural selection which results in efficient use of fluoride -- it just happens, by coincidence, to have a beneficial interaction with hydroxyapatite, the main mineral component of teeth. Animals with no fluoride in their diet or water survive without it, but then most die of other causes long before poor dental health could ever do them in, so there's little to no evolutionary pressure on any adaptive mechanism to better deal with it. Besides, there's not enough fluoride available in most environments for any adaptation to matter. Humans discovered the benefits of fluoride in large part because we live so damned long when we use our tools and organizational skills to isolate ourselves from Nature, and because we enjoy such a high standard of living relative to the wild that we can notice otherwise minor things like a little tooth decay. Unfortunately, some in our society insist believing that everything natural, including tooth decay, is just "the way God intended it", and we shouldn't try to improve on it even when we know damned well how to do so. Such people should avoid going to doctors and dentists, and refuse aid from paramedics if they are in an accident; to do so would violate God's will.

Off to ze camps.

It's a post truth world we're living in. People cannot tell reality anymore. I've seen the anti fluoride materials, they're garbage and rely on readers not reading things thoroughly. Same with 5G nonsense. Our culture has been taken over by the "do your own research" mantra when they aren't really talking about actual "research", they're talking about reading a few social media posts and one faux article.

Healthy teeth is a huge factor towards overall health. Fluoride in our water has been a godsend for people and now that's possibly going away, probably to the poorest populations first. I don't even know anymore.