China to this day is struggling just to emulate the kind of innovative success in free market economy that America pioneered centuries ago.
To the extent China is enjoying any success today, it's largely due to free market style reforms of their economy, attempting to abandon the destructive policies of Communism. There's no little irony in the fact that as China has moved more Capitalist, America has shifted far more Socialist (with predictable results).
Which countries did America extort from 1800 to 1965 in order to build its formerly tremendous wealth and resources exactly?
Are you talking oil? America discovered oil, and invented most of its processes. It also discovered oil in the Middle East using said technology, and that oil was then nationalized across the region and countless contracts were violated in the process.
Are you talking industrial technology? America was one of the few countries (eg along with Britain and France) leading the industrial revolution.
Are you talking computer technology? No comment even necessary.
Are you talking biotech? Again, no comment even necessary. Who did America steal its biotech from? Cambodia? Afghanistan? Vietnam? China? Panama?
Pick an industry, pick a technology, you'll find America's entrepreneurial fingerprint all over it.