I don’t worry much about that stuff because there is little chance that it will happen in my lifetime and there is nothing I can do to stop it anyway.
I don’t worry about radiation because life grew up around it and I figure since life is still here it learned to deal with it as a matter of course.
The Earth was much more radioactive billions of years ago when life got started it had to have mechanisms to overcome the damage. Sure those repair mechanisms don’t always work but that’s life.
The evidence of Chernobyl, Hiroshima and several other accidents all show that low level chronic radiation has no statistically discernible adverse effects on health. Some studies actually show a benefit to health.
It is true that more folks died in Ted Kennedy’s car than at Three Mile Island.
But, we actually know very little about the Sun. Just look what happens with the current minimum. Should it prove to be long lived, people will die.