When has any of this happened? How many did Fukushima kill? Meanwhile fossil fuels kill millions every year and are slowly changing the habitability of the ent

When has any of this happened? How many did Fukushima kill? Meanwhile fossil fuels kill millions every year and are slowly changing the habitability of the entire globe. I like the idea that somehow a civilization thousands of years in the future will not be advanced enough to have radioactivity meters, yet we should worry more about a couple of people in this far future dying because they dug into deeply buried radioactive storage instead of getting eaten by wolves as would be more common for those future hunter gatherers.