Disproportion

I think the one thing this picture shows that's new is the psychological disproportion of the kids' demands on the parents. Parents are often at fault, but the kids have some work to do, too.

[…] a handsome creature, remarkably so, with features so symmetrical […] that a micrometer gauge could scarcely find a disproportion in her smooth and broad mahogany-coloured face.

Then we, the social outsiders, turn around and dictate how men shall treat women (seldom, if ever, how women shall treat men; power in men's rather than women's hands being the excuse offered for this lop-sided arrangement), and how whites shall treat blacks (the same disproportion exists here too).

the disproportion of the length of a building to its height

the disproportion of strength or means to an object

To shape my legs of an unequal size; / To disproportion me in every part.

a degree of strength altogether disproportioned to the extent of its territory