To be fair, a lot of European countries and localities do not treat their water with fluoride at all. Some have better dental health purely due to better healthcare/dental coverage.
The onset of anti-vaccine sentiment will do far more damage and shouldn't be bracketed in that same category.
As a British person, I only discovered that water fluoridation was a thing a few months ago. We usually have chlorine in our water, but almost no fluoride - we get that in our toothpaste.
