Designer babies is the start. Like I already believe if you're "selecting" something like your baby's gender, you're fuckin Hitler. But then, my roommate was all, "Well what if you could remove the trait for Huntington's that runs in the family?"
So there's clearly a spectrum of ways that genetic engineering could go.
The most interesting case to me is of He Jianku, who reportedly began studying and modifying human embryos. CIA fear disinfo, or Chinese scientists just marching ahead and setting the new standards of the 21st century?
that's actually impossible due to the way ancestry works. gene editing will target a few or at best a few dozen SNPs.
Ancestral genetic differences are in the tens of millions.
You can definitely edit a child to be white, or light hair/eyed, or Black etc, because these things are determined by a tiny handful of genes. But you absolutely can't edit a child to be more European or more African, that's physically impossible unless we gain the ability to change MILLIONS of letters of code in a human very precisely with zero off target effects.
Also daily reminder that genetic Europeans went extinct during the bronze age, and what you see now are essentially Middle Eastern Mestizos.