Earlier quoted context omitted.
That has everything to do with politics. Go take a look at the various declarations of secession when the slaveholding US states tried to quit and form the Confederacy. A number of them explicitly mention that a system of racial slavery is fine because black people were naturally inferior, which is how in the 1850s one would have said "biological differences". That was very obviously politics. Further, there's an eno…
The trouble is that there are well known physical[1] and psychological[2] differences between the sexes. The same isn't true between races. It may still be political, but the arguments against it shouldn't be the same. [1] https://en.wikipedia.org/wiki/Sex_differences_in_humans?wpro... [2] https://en.wikipedia.org/wiki/Sex_differences_in_psychology?...
Given that these arguments have been consistently proven wrong but always come back in a different form, the 21st-century versions should be carefully scrutinized to see if they're the same politically motivated reasoning. And we should never pretend that they're not political, however much they're cloaked in objectivity. Indeed, people who value science should especially object to political argument wrapping itself in a lab coat.