That's not what he meant actually, the part he quotes is about a god being like "i have the power of death, what's up" .
Oppenheimer didn't say anything memorable at the time, he said in a later interview that he thought of that passage in the Bhagavad Gita, which totally means he read the passage sometime after the test and thought that would have been a cool thing to say right after.
The most memorable quote from that day was Bainbridge who said to Oppenheimer "Now we are all sons of bitches". Like I don't doubt the Trinity test really did bring home to all these university professors and swagless nerds that they had unleased a horrible new evil onto the world.
Really the only thing they could have done to redeem themselves was to tell the Soviets how to build the bomb, which granted like a third of them were already doing but that's beside the point.
eh, it's not necessarily what he meant in the moment, but he freaked out afterwards and then got iced out of any interaction with the us government. the meme is basically blowback accurate.
in context it's clear that the point of the quote to him was that the bomb is Vishnu, that the creation of the Manhattan project was a force of destruction beyond the power and control of mortals.
The inventor of the Maxim gun also thought that a weapon so destructive could be so terrifying that it would create world peace.
Metal Gear flips it on its head. For the villains, the point of superweapons is to guarantee eternal warfare.
