The worst sort of made-up pseudo-science ever invented and used for exactly these reasons - to justify Western patriarchy. Snort!
Given that human populations are highly likely to vary in important measures that affect sex roles (such as adult sex ratios and population density), we might expect to see Bateman gradients differ between human populations. As in many non-human populations, a variety of alternative strategies are likely to characterize the mating (and/or marital) strategies of men and women, with each individual’s optimal strategy dictated as much by the behaviour of same sex as opposite sex individuals; we would accordingly expect multiple strategies within each sex. (emphasis mine)