Bateman's Principle is a principle in evolutionary biology which states that there is greater variance (or inequality) in reproductive success among males than females. There is debate as to whether this principle holds true across the animal kingdom as a whole, however incels believe the principle holds for at least humans.
Female hypergamy exaggerates Bateman's Principle in humans and makes it worse. This is partially why men complain more than women do about access to sexual intimacy. Studies have shown, and academics such as scholar Angela Nagle and sexologist Kristin Spitznogle have argued that Bateman's Priniciple indeed applies to modern humans.
A study which analyzed GINI coefficients in human relationships found that, “single men have a higher Gini coefficient (.536) than single women (.470). Thus, female sexual partners are more unequally distributed among single men than male sexual partners are among single women”
A study that analyzed changes in the distribution of sex partners from 2002 to 2011-2013 showed that compared to 2002, top 20% of men (in terms of LMS) now had a 25% increase in sexual partners, and the top 5% of men had an outstanding 38% increase in the number of sexual partners. The study commented that “no significant changes were identified among women in the top 20% and top 5%, overall, and among subgroups”.