It's a personality trait thing (i.e., agreeableness)

Women are disproportionately higher in the personality trait agreeableness, which means that in competitive situations they are disproportionately stepped on a stepped over more than men.

Being an agreeable person is not a good thing or a bad thing; it is just a thing. It is beneficial in certain situations and disadvantageous in other situations ...

... And before somebody makes the claim that women being disproportionately more agreeable is a result of our society's patriarchal history, that is almost definitely not true.

Women being disproportionately more agreeable--and thus feeling like they always have to justify why they deserve a seat at the table--is a result of millions and millions of years of evolutionary history.