Everything feminists accuse men's entertainment of being (not just porn, all entertainment period) applies more fully to female entertainment. Female entertainment is what tends to encourage women to set unrealistic expectations for men. Female entertainment tends to treat male characters as prizes to be won (or more often than not, manipulated and disposed of). Female entertainment romanticizes terrible behaviors like stalking, abuse, adultery, and rape. And it's female entertainment that, well, depicts men in ways that don't reflect actual male behavior and shows the writer doesn't understand them at all (aka "Women writing men."). And as you say, female porn is easily accessible for people of all ages, unlike male porn, which is always hidden behind closed doors.