I always wondered, whether mass producing combustion engines, many petrol based plastics, building large nuclear reactors: Why play with something toxic at such lethal scale?

Paracelsus correctly observed in the 16th century: “The dose makes the poison”.

So radioactive materials, forever chemicals, petrol engines might have their small justifiable edge cases, but no civilized society should even have structures in place that enable large scale concentration and control of these inarguably deadly materials.