To an extent that’s true - genetics can detect your race and gender, both of which have a very strong correlation (although definitely not causation) with success.

That said ever since we have been able to run genetic tests people have tried to use them to demonstrate that group A is “worse” than everyone else, or the group B is superior. Before that they tried to use phrenology. In every case they successfully came up with a measurement that demonstrated that some group was inferior.

Weirdly the measurements confirmed stereotypes of the time, it’s almost like there was some kind of external bias effecting their results...