Kenshiro that article about brain shrinkage is very generalized and universalized. The biggest modern brains we have right now are quite stable if not getting bigger.
Of course archaic features will always prevail and be the most common. Nor will they be going away anywhere anytime soon.
Inkarri makes a great point elsewhere -- sure, modern women are strange, but compared to the apes and salamanders your ancestors had to pick from, your pickings look great.
Might as well throw this in here:
"According to evolution by natural selection, an organism that sees reality as it is will never be more fit than an organism of equal complexity that sees none of reality but is just tuned to fitness. Never." - Donald D. Hoffman
https://www.theatlantic.com/science/archive/2016/04/the-illusion-of-reality/479559/
I think your EQ and how archaic/modern you are greatly affects how you percieve reality and your levels of subjectivity and objectivity. Notwithstanding whether an actual objective reality exists or not.