You made a new account just to comment on my post? I'm flattered.

There's no evidence this applies to human subspecies,

You don't need to be an anthropologist to see that different populations of humans employ different reproductive strategys. You just need to use your eyes. Blacks are more promiscuous than whites and Asians, and the children are raised by the mother alone. This behaviour is clearly due to nature rather than nurture, since it is displayed by blacks in America and Africa.

Another point worth considering. Black children reach puberty earlier than whites and Asians, enabling them to begin reproducing earlier. Black women are more likely to have twins, and they also enter menopause earlier than white or Asian women.

and r/k isn't even used in modern biology because it's reductive and simplistic

Thats your misunderstanding. As I said, R/K selection isn't a binary yes/no phenomenon. It exists on a spectrum. Some species are extreme R, some are moderate R, some are moderate K, some are extreme K. This chart should help you assess the different extremes in reproductive strategys.

Blacks aren't territorial now?

Now your just nitpicking. This chart is using generalisations to get the point across to a layman audience. It describes the different features of R and K selection as they exist across the entire animal kingdom. Humans as a species obviously are K selected. But some populations (such as whites) are more K selected than others (such as blacks).