And a 43/38% rate difference is a horribly poor differentiator between groups in any intentional bioweapon.
But well within observed natural occurrence for historical plagues. Think of what measles did to Native American populations compared to what it did to the Europeans. Or what the bubonic plague did to Europeans compared to Asians.
If the Chinese attempted to make an ethnic-selective virus, I believe they failed.
What I believe did happen was that a psychopathic world elite decided to reduce the world population by an engineered pandemic, to which they of course, would have immunization. Organizations that could develop such a thing got very reluctant to continue with the program, so they went shopping for more cooperative venues. First, they tried Canada, and when that got resistance, they tried China (Wuhan).
"Doing the work that Americans don't want to do", or some such thing.
A lot of things went wrong with the clever plan, including accidental early release of an unstable prototype, and failure to develop a real immunization treatment. Even so, "They" managed to improvise well enough to deploy the mRNA treatment to hundreds of millions of people. The panic and propaganda campaigns were generally successful, especially in the United States, where we see 75% - 80% "vaccination" rates.
The mRNA treatment was never intended to be the immunizer. It was intended to do pretty much what it is actually doing now - which is a "slow-burn" population reduction. But once again, things are not working as intended. A huge percentage of the injections were duds, as they thawed out before they could be used. Even those who were adversely afflicted may have some recourse to prevent further injury, if they are not already dead. And people have become suspicious. In spite of ongoing propaganda campaigns, the current uptake rate of new treatments and boosters is close to zero.
This posting is all just theory and assessment, posted for adult entertainment. Make of it what you will.