It's good that you implicitly acknowledge that an infrastructure, both physical and societal, needs to be in place for legitimate entrepreneurship to flourish at that level. An infrastructure that needs to be paid for with taxes especially by those who flourish so handsomely from it.
"Tope Awotona ($1.4 billion), the founder and CEO of scheduling software company Calendly. As a 12-year-old in Lagos, Nigeria, Awotona witnessed his father get shot and killed in a carjacking. Three years later he and his family moved to Atlanta, Georgia." Please don't tell us those guys did not have any privilege prior to their success in the US. My wife was a highly decorated manager overseeing an entire continent for the world's largest financial data company and she tried to be internally moved to the US for years. Each and every single time there was other roadblocks that immigration threw at us. And this guy just moves to the US? Give me a break. That's not how it happened. As always media glorify and only amplify success but don't tell the whole story. Highlighting how his parents suffered tragedy makes the story sound so much sweeter. He certainly could not immigrate to the US on grounds of being refuge just because his dad was murdered. So how did he get into the country? I studied at one of the US's top school in graduate school and found that companies did not really bother much to get paperwork done to hire highly qualified non-residents. Something about those stories does not add up. Most likely most of them were already highly privileged in their own countries.
Two observations. First, you are making assumptions. And, second, you are moving your own goal posts.
I hope a lot of them. Then the slogan would be: America where even the illegal immigrants can be billionaires!
According to dept of labor the mean income for illegals is 5.25 per hour. I'm no mathematician but that's about 24 million working days to become a billionaire. Not including overtime.