They will claim IQ tests are pseudoscience yet believe in celebrating 'neurodivergence' when there is no quantitative measure for most of those disorders.

Communists haven't been able to come up with a mathematical model for their principles and labour theory of value. They consider the field of economics to be bullshit but at least economists try to model a socioeconomic theory with statistics and derivatives.

Leftists will religiously believe in ideas from sociology like systemic racism, patriarchy, or hierarchy of powers. Why can't they come up with numbers to show how much of an effect those have?

There are many more examples. Is it because leftists have a more female brain or less logic oriented way of thinking?