[rayiner]

Culture, history, and wealth. Americans are more individualistic and anti-social than Europeans, and much more so than Chinese. Some have theorized that the exodus of the most disagreeable 1/4 of the Swedish population to the U.S. in the 19th century laid the groundwork for the modern Swedish welfare state: https://slate.com/business/2019/01/scandinavian-socialism-mi....

This is a continuing phenomenon. The fastest growing ethnic group in the U.S. today is Asians. But when polled, only 7-8% of Asians in Asia would migrate if they had the opportunity: https://news.gallup.com/poll/245255/750-million-worldwide-mi.... The ones that come here are the anti-social ones like my parents, who don't mind leaving behind their kin and ancestral ties to make their home in a foreign country. (They live in a suburb with no sidewalks and drive an SUV, of course.)

History: The American continent has been populated by migration. My wife's family landed on the east coast in the 1700s and kept moving west until they reached Oregon in the 1800s. This has both created a culture of valuing unrestricted mobility, and also as a practical matter meant that most development is greenfield. In Germany even tiny villages have been settled for hundreds of years--there are roads, old churches, etc., that force development into a particular pattern. My town in Maryland was mostly farmland just 50 years ago, and most of the stretch between here and DC is still farmland. The giant freeway connecting the two was built through 20 miles of nothing in the 1950s. But note that greenfield development happens in Europe too, and there's plenty of car-dependent suburbs in parts of Germany.

Wealth: Americans are significantly richer than Europeans, and vastly richer than Chinese. Many, many Chinese people would love to have a house on an acre of land and drive around in an air conditioned car all day. And Americans can afford to actually do that.