I know fluoride is toxic in the water supply and avoid it. As a lifelong alternative health follower, I also abandoned fluoride toothpaste many years ago.
Although I have a good high mineral Huggin's type paleo diet, I have the worst teeth imaginable and every year have several if not dozens more cavities.
I am beginning to think fluoride toothpaste has very good rationale. I notice all my non-health conscious friends teeth are fine if not great. They all brush with fluoride.
I don't think their is a legitimate danger of fluoride poisoning from toothpaste as long as you don't swallow and thoroughly rinse.
I fear I have caused thousands of dollars of damage to my teeth by not using fluoridated toothpaste.