>>81486004
Low class whites are still smarter than middle class blacks on average. This screenshot is from an actual research paper unlike the hoax one.

Here is another:
>https://openpsych.net/files/papers/Fuerst_2014a.pdf
>The relative importance of genetic and environmental sources of IQ differences in White populations is an extensively studied subject. The results conclusively show that genetic variation is the main cause of individual differences in IQ after early childhood. The family environment has been shown to be a relatively unimportant source of cognitive variation in Whites. Generally, in early childhood genetic effects explain less than 50 percent of IQ variance, and the effect of the shared environment is strong. As children age, genetic effects become more and more prominent and the shared environmental variance decreases. In adults, h2 is in the range of 60-80 percent, while c2 is small if not zero; e2, which includes measurement error, explains the rest (McGue, et al., 1993; Tucker-Drob, et al., 2013).
Study from 2023: https://pmc.ncbi.nlm.nih.gov/articles/PMC9706469/
>Contrary to our expectations, the incremental contribution of income was small even at working ages. This finding seems to counter earlier results by Zahodne et al. (2017), who reported that income was a notable contributor to racial disparities in cognition and that the indirect effect via income diminished with age.
And blacks controlled for in all areas, demographic, socioeconomica, health, psychosocials:
>https://pmc.ncbi.nlm.nih.gov/articles/PMC2939725/