Actually, there's some sense in your statement. If you look at our world today, the biggest threat to life on this planet is not gamma rays. The biggest threat to life on this planet . . . is other life on this planet. Most of that is motivated by these "ancient superstitions".
The cruel irony is, that Islam, Christianity and the Judaism are all based on the same Jewish Fairy Tales. And despite that it seems that Muslims are hell-bent on killing everyone who isn't a Muslim. This latest Islamic State crew even seem to want to kill fellow Muslims as well.
Forget gamma rays. If, in the future, we are able to travel to habitable planets . . . we'll probably discover that the life there has destroyed itself. No need for gamma rays to do what life can do to itself.