Perhaps I misunderstand your point, but the US obviously doesn't have any issue meddling in other country's economies or political systems. The US also obviously allows foreigners to business in the US without many restrictions. Is this the "free market" I keep hearing about? I don't know.
The OP was contrasting this with China, that does not allow foreigners access to their markets. As a regular American, quite honestly, I would like a bit of protectionism from the US, as I recently bought a house and had to compete with cash offers from Chinese banks. It's insane to me that we allow foreigners to buy property here, while our own citizens are being increasingly priced out of our own country.