Do you struggle with facts?
Preconceived notions based on the sex of a person is sexism (especially when it's about their psychological disposition and not just something they definitely can't change, so it's even worse), do you struggle with facts?
It's like saying woman are dumb at math's and should not be in the class, a common 19th-early 20th century pile of bigotry.
It is the inherent nature of women