I can't speak for what it is like in Silicon Valley but where I work in the deep south I would estimate that at least 30% of my fellow tech workers are of African ancestry.
Obviously, the rest of them came from Asia, right?
It's a cautionary tale about the fundamental unreliability of Wikipedia
As opposed to what? The things that people "knowledgeably" trade, like the one about us using "only 10% of our brains"? Or the things that we "know for sure" about ancient history? A few uncaught jokes in Wikipedia, and suddenly it's no more reliable than hearsay? (Or how else am I supposed to interpret this "fundamental unreliability"?) Sooner or later, someone would have attached a  to that anyway.
it's a way for them to name a plant so that it has obvious technological associations
It actually has obvious mythological associations, but feel free to limit yourself to physical units. In common speech, "megas" meant nothing more than simply "big", while "gigas" meant "a Giant". I guess the obvious English adjective would be "effing huge".
Yes, but is it 1000 times bigger or 1024 times bigger? That's the important part!
I'm not sure we're familiar with the size of the Ancient Greek Gigantes with such precision.
And yet Israel insists on controlling the territory. They may not get a vote but they ARE Israeli citizens until such time as Israel actually stops trying to control their political processes and truly leaves.
And Afghani are US citizens until the US actually stops trying to control their political processes and truly leaves. You logic is impeccable!