That's not really true is it? the US has a habit of appropriating every tech innovation in the "west" (plus Japan and Korea) as "theirs", throwing up barriers so that if you put an American screw in your widget they decide what you can and can't do with the widget and claim "Dominance"! I think the yiddish word for it is 'chutzpah'
Contrast that with the talking point that anything done in "backwards" China is theft and copied (lets not start with Russian engineering and the air brushing of their contributions to science!).
I mean Columbus 'discovered' America (there wasn't anyone there already, honest!) and other 'truths' we are brought up with!
There are a few fields where the US can still claim "dominance" but they are far from THE dominant tech player (patenting round corners doesn't make you dominant!), which is the root of the current "trade dispute" the western mindset felt safe behind its world view that "East Asians" can't innovate just copy a view that persisted for decades, the shock to the system in the 21st century when they discovered that the notion isn't actually true is what's causing the geopolitical problems of today.
The rise of China is akin to a latter day "slave rebellion" after all how dare they want equality, they should just be happy buying our superior soya beans to feed pigs and providing the cheap labour that make our lives better not to have these uppity dreams about making theirs better.
You know that spare cash you've made from your hard work if you can just lend us say another trillion so we can build some more ships to harass you, you won't need to worry you little brains with how to spend it! All this building 5G networks and semiconductors should be left to others, we know best, we're Americans and we're here to help!