This reasoning is like the fear of a some random TESTED C++ code destroying the internet, because "it might do things that you don't expect in the long run". Well yeah... it might... but...
The worst part is, we can stop building the foundations of this type of technology, but our geopolitical opponents will not.
The good news is that "race" is a social construct, not a genetic one. Very little genetic variation differentiates between groups of people, and the differences that exist do not map onto socially recognized categories of race.
https://onlinelibrary.wiley.com/doi/full/10.1002/ajpa.23882
https://www.science.org/doi/10.1126/science.1078311
https://www.nature.com/articles/ng1438
I can help you access the full text of all cited research if you can't get it through your library or employer.
I can certainly see it being China's final solution to the Uyghur question. They have a long history of callously and needlessly killing large swaths of their own people toward nationalistic ends, and not just under Communist rule.
Snake: Those enzymes recognize the target's DNA?
Naomi: Right. They respond by becoming active, and using the macrophages, they begin creating TNF epsilon. It's a type of cytokine, a peptide which causes cells to die. The TNF epsilon is carried along the bloodstream to the heart, where they attach to the TNF receptors in the heart cells.
Snake: And then...they cause a heart attack?
Naomi: The heart cells suffer a shock and undergo an extreme apoptosis. Then... the victim dies.
It's a little too late to "stop building the foundations". That's like wanting to "stop building the foundations" for the tech that allows governments to spy on civilians. We're about 20 to 30 years passed that.
Who are they?