I'm not sure I agree. In the aircraft industry especially the US has strongly pushed for exports. Overseas programs (TRS2, Avro Arrow) were terminated for political reasons (and replaced with F111 etc). More recently see F35 impact.
That's before we discuss the advantage Boeing has in the commercial market thanks to DoD contracts.
Your link shows that the US exports the same as the next 20 countries added together. That suggests some market dominance.
I also suspect these numbers do not include "military aid" - where weapons and munitions are "given" by the US to Ukraine wherever[1]. (But they may, I don't know.)
I agree though that the primary benefit of this is not "sales". And even if it was these aren't consumer goods. So it's not easily compared to China's approach. I'm not suggesting it's a terribly good subsidy. But it's still a subsidy.
[1] there are a lot of political benefits to be gained by having bases in foreign countries, or by port visits by US ships. Unfortunately most of those benefits have been eroded in the last 2 years. The gutting of USAid (which saved basically nothing), leaving the WHO, the tarrif nonsense, bombing Iran - all have destroyed a benevolent reputation 75 years in the making.
Sure the US benefits by giving arms to Ukraine, or having bases in other countries.
But that has nothing to do with the topic at hand which is market dominance for some industry.
>Boeing DOD contracts
This is probably the closest comparison to what China is doing. But it’s still not the same thing because the US buys equipment from Boeing, they don’t just give them direct subsidies.
The equivalent would be if China awarded Bambu a contract to provide 3d printers to schools.
To the extent that the US pursues policies that help defense companies. They don’t do it in order to help those companies compete in foreign markets. They do it because they want those companies not to go out of business for national security reasons, or because they want those companies to provide domestic jobs.
The US does other shady things, but spending massive amounts to help domestic companies outcompete foreign companies in foreign markets isn’t one of them.