I have flown hypersonic jets against 'flying saucers'. I have braved the . . . "Green Death Rays." Yes, that's what their lasers beams look like!
I believe they aren't green lasers, however. I believe instead it is the enormity of their power that creates the green glow. You have to fly in a random pattern as you move toward saucer targets. Otherwise, their computers lock on.
Yes, Humans are predominately Nordic DNA--Nordic Blood! And, that's all Humans, including Orientals, Indians, and Blacks! And, Nordics are one of the strongest races in the Galaxy.
And, yes, 1% of Aliens would destroy all of us if they could. And, yes, they have already tried to destroy Earth!