Said another way, America is the sandbox for the rich to experiment on the poor, with technology that may or may not be good for the poor but ultimately doesn’t matter because the ultimate winner is always the one funding them.
It’s the test and staging servers for global capitalism
Those companies have generated hundreds of thousands of extremely high paying jobs because hundreds of millions of consumers/many businesses chose to give them money.
People are buying vastly bigger houses than their parents did. Adjusted for inflation, and most importantly, for square footage, median US housing costs are quite flat. Last I ran the numbers, per sq foot, prices are slightly lower than in the past.
What poor person gets aspiration because of Spacex. A basketball player is cheaper and does a better job inspiring.
The poor cannot afford to run adwords campaigns and can't even get a credit card.
Facebooks ads even more expensive.
The poor are not looking for short term rentals and cannot afford to live in the most expensive cities using airbnb. They live in rundown rent controlled places.
The poor in America are richer than the poor in just about any other country. The US poverty line is around the top 15% of world incomes, and that's pre tax transfers. Post tax transfers puts them much higher.