Not sure if your questions are serious or if you’re fooling us? Millions of people in this hobby for many decades, most have had pallys, have you googled any deaths ever? Have you googled any bad experiences? Maybe a handful, out of millions through decades of the hobby. Pally toxin is not developed to harm people it is made to harm corals, most human negative experience is from allergy or individual biology. Fish will not die. Your questions are overblown IMO
If you’re really that concerned then don’t keep pallys. 2 out of three of my tanks have no pallys, it’s very easy to have a tank without pallys there are so many other choices.