Your comment sounds more like a veiled swipe at the US rather than anything constructive.
Take an introductory macro economics course to find out why what you said actually doesn't work out in practice. It's much better if a country specializes in what they are good at rather than try to do everything. Given that the US has proven itself to be quite good at making software and internet, that would make it a pretty good place to be, regardless of immigration rules.
When it gets down to it — talking trade balances here — once we've brain-drained all our technology into other countries, once things have evened out, they're making cars in Bolivia and microwave ovens in Tadzhikistan and selling them here — once our edge in natural resources has been made irrelevant by giant Hong Kong ships and dirigibles that can ship North Dakota all the way to New Zealand for a nickel — once the Invisible Hand has taken away all those historical inequities and smeared them out into a broad global layer of what a Pakistani brickmaker would consider to be prosperity — y'know what? There's only four things we do better than anyone else:
Take an introductory macro economics course to find out why what you said actually doesn't work out in practice. It's much better if a country specializes in what they are good at rather than try to do everything. Given that the US has proven itself to be quite good at making software and internet, that would make it a pretty good place to be, regardless of immigration rules.