So, US companies started the whole globalization thing by using cheap labor in China to manufacture their wares and see them for US-scale prices and make gigantic profits off the backs of, effectively, slave labor in other countries. Over the years this has resulted in the decline of manufacturing in any country with higher-than-the-lowest wage rates, giving these low wage countries both control of manufacturing and possession of the best knowledge of the everything to do with manufacturing processes.
When it comes to consumers trying to do the same thing as the cheap-labor companies, purchasing in markets cheaper than the US, we get region-locked DVDs , laws against counterfeiting (even when the clothing comes off the same line), and excess branded stock being burnt / shredded to "protect brand integrity".
When it comes to these countries that have been, for years, doing the manufacturing of goods for companies based in other countries actually manufacturing goods for companies based in their own country, and therefore not needing the profit margins of high-wage countries, the US Government goes straight to "National Security".
I mean, technically, I think it is a National Security risk, but for reasons of the future economic stability of the US, not for "hack the planet" reasons.
The US acts in its own economic interests. Everything else is secondary. What the US is saying, however, is to give the impression that their motives are more honorable than "give us money, not them". This isn't necessarily "wrong", as most countries probably act in the same way, it just happens that the US are the ones shouting from the rooftops at the moment.