It seems to me, as a 59-year-old man, that the entertainment industry has developed 'Tall Poppy Syndrome' towards female actors. Many high-profile actresses have been lambasted for being too assertive on set. But assertiveness is translated to 'bitchiness' by the pop-culture/entertainment media. It's easy to portray a woman as 'bitchy' because there is still underlying misogyny in society across both sexes (or whatever amount of sexes/genders you deem valid).