Gamma rays ARE electro-magnetic energy!
Gamma rays ARE electro-magnetic energy!
You do realize that there is a vast difference between particles (that are trapped by the VA Belts) and rays?
Everything we know is on the electromagnetic spectrum (which graphic you supplied), but just because they are included, does not make them deadly.
Electromagnetic particles are not deadly to humans or any other life - when this trope started I don’t know but it must have been by some troll making up science to prove some stupid point.
You would have to linger in them for years in them to see any effect. Astronauts pass through them very quickly on the way to the moon or elsewhere in a matter of seconds or minutes depending on the speed and orbit chosen.