If the people creating US technology weren't permitted to move here, the center of mass of the world's tech industry would shift somewhere else with sane immigration policies, probably Toronto. US persons who want to work in technology would have to emigrate to find jobs.
You can't just eliminate the vast majority of the people who work in an industry, and expect it to still exist.
His biological father was not involved in his life and had no bearing on whom he became. That's like pointing out that the Night Stalker's father was an immigrant.
Steve Jobs wouldn't have existed in the first place without his biological father.
He certainly wouldn't have been born in the US, gotten adopted into the particular family that he was, and received the opportunities that he did had his bio father not emigrated.
I had to look up who the Night Stalker was, now I wish I hadn't. Not going to be able to sleep now :-/
