WW2 didn’t start overnight. There was a series of military actions that went unchallenged. That only made the belligerents bolder.

My wireless steel series worked with no extra effort.

Fluoride can be bad for you, just at much higher doses than they put in water supply. It can cause issues with bones and neurological development. Again, only in very high doses over a long time. It happens a lot in poorer countries where they can’t treat well water.

https://en.m.wikipedia.org/wiki/Skeletal_fluorosis