What structural factors are often overlooked in biological arguments about race and racial variation?

https://wwnorton.com/common/mplay/6.11/?p=/college/soc/soc-in-prac-videos/&f=americans&ft=mp4&cc=1&cdn=1 Race is a social construction, one created by those with the power to decide what race means. In this selection, we explore the shifting definitions of race and the privileges of whiteness. If race is not a biological condition, how and why are meanings of race created? What structural factors are often overlooked in biological arguments about race and racial variation? How do biological arguments about race both reflect and reproduce racial inequality?