>>57585> extreme sexual dimorphism
In mammals, yes, but in nature overall, not really. The largest male-is-bigger sexual dimorphisms are for certain fish where the male is about 12 times the mass of the female, and in mammals the elephant seal male is 8 times the mass of the female.
The largest female-is-bigger sexual dimorphism in vertebrates is the giant seadevil female being 500,000 times the mass of the male. https://www.huffpost.com/entry/animal-female-size_b_3177995
The blanket octopus male is 1/150th the length of the female. If men were 15 times taller than that height ratio, 1/10th the height of women would involve men being about 6.5 to 7 inches tall; Barbie dolls, in contrast, are 11.5" tall.
Raccoons can weigh 12 to 30 lbs, and very large raccoons have been known to weigh 50 lbs. The average weight of an American woman is 170 lbs. If we take the "very large raccoon" as the basis of comparison, then the mass ratio is about 3 to 4 times male mass, which is only half of the difference in average mass by sex among elephant seals. If we take the smaller 12 lb raccoon as the basis of comparison, that's a mass ratio of 14, which is unprecedented in mammals but still reasonable in the animal kingdom itself.
Of all possible worlds, this is the one we live in.