You really don't think that the US exports a ton of media and entertainment? And that, for example, it happens to impose and protect copyright laws to make sure those profits continue?

I have trouble finding the export figures, but there's this:

> The global media and entertainment market was worth $1.9 trillion in 2016, with extrapolations ranging to $2.14 trillion by 2020. About one third of the total ($735 billion in 2017) is made up by the U.S. entertainment industry.

Edit: seems the export figure is quite a bit smaller, CNN lists tv/movies together with software at 49 billion: https://money.cnn.com/2018/03/07/news/economy/top-us-exports...