That's more a function of subsidizes instead of foreign preference for USD.
Chinese median household incomes (Yuan 34,000 or around $4,700) are much too low to spend on most goods at scale [0], and most of the money that could be spent on expanding the social safety net (and thus incentivizing Chinese consumers to spend instead of save) is spent on industrial subsidizes like tax holidays, a regressive income tax system comparable to the US, and subsidizing various redundant but provincially influential SOEs that can't compete with domestic private sector players (eg. traditional Chinese automotive players like SAIC and Chery versus BYD), and this is reflected in Chinese spending data as well as StatsChina's breakdown of spending by urban and rural Chinese [0].
You are going to be dependent on foreign exports if your domestic consumers can only spend around Yuan 4000/$550 a year on transportation and telecom combined. Even factoring for PPP, it is difficult as these metrics are low in comparison to peer countries from a developmental standpoint.
A lot of the "overproduction" that has made Chinese goods globally dominant is a result of that misalignment between consumers and production.
Expanding the social safety net in China would dramatically enhance Chinese competitiveness over the long term, but top level leadership remains explicitly opposed to what they call "Welfarism" [1]:
"福利主义典范国家,中产塌陷、贫富分化、社会撕裂、民粹喧嚣,这不乏警示— 防止落入“福利主义”养懒汉陷阱"
"In countries that use a welfare model, the middle class is collapsing, the rich and the poor are polarizing, society is torn apart, and populism is rising. This is a warning - Prevent yourself from falling into the trap of "welfarism" to support lazy people"
[0] - https://www.stats.gov.cn/english/PressRelease/202501/t202501...
[1] - http://theory.people.com.cn/n1/2021/1116/c40531-32283350.htm...