The more intriguing is the issue of aliens, which truly shows the major problem with this argument. It suggests aliens either have the same population diversity of earth or that all significantly human looking aliens have the features of white person. Aliens are alien. They aren't human. They aren't typically citizens and our population diversity has nothing to do with theirs. The reason people think this way is that white is the baseline in our society regardless of species. To be human is to be white unless stated otherwise. It is sad but it is true. The only non-caucasian featured alien I can recall is Icon from Milestone (now a DC Owned property). Who is to say that aliens appear like Caucasian perople and not black, or asian or multi-ethnic?. Who is to say there is not a planet where matriarchy is the status-quo? Who is to say that females in every society are not viewed as the stronger of the genders? Aliens are not confined to our situation. There is no reason why a female alien or a "ethnic" (I loathe that word somewhat) looking alien cannot become a major superhero.
While I do not believe quotas are necessary, so much as common sense, there is one statistic that should be acknowledged....51% of the population is female. As far as random chance goes there should be more female characters. There should be more female characters who are independent of another hero. I am not saying there should be some magical number for every team. I am certainty not saying that every team should be an equal 50/50. I am saying to those who use statistics that by their own logic they should be arguing for more female characters. I am saying that there simply should be a higher percentage of non white male heterosexual characters. I am saying that there should not be a need for any quota because making a good character, that so happens to be female isn't hard!
Starfire is a wonderful character, but how do you give a teenager a Starfire comic and say "Live up to her kindness and goodness" when those are not the things the art, which is part of the story, focuses on. Starfire's people believed in openness and wore revealing clothes because of that fact, providing a good reason to her outfits. Yet artists enjoyed abusing this by portraying her in pornographic poses for posters and art. George Perez and early Titans artists avoided this and focused on her beauty as a person by drawing attention to her face as well as her body. In some art you are immediately stuck by how kind her eyes are and how soft her smile is. You know she is filled with love and just wants to make sure everyone is happy like she is. Yet she is often reduced to her body, her face plain and the vibrancy gone with past artists. She's only one and far better off than the Barbwire, Witchblade, Lady Death, or the Star Saphire's of Green Lantern. It is worth noting the Star Saphire costumes tend to be on the revealing side on average unlike most other Lanterns, as though their representing of love is the same as lust because they are an all female core. Ultimately these characteristics drive away women, and even men because there is a complete lack of diversity in what it means to be sexy and a woman. Ultimately what these artists and editors tell us is that to be a woman, a powerful one, your sexuality must be present not for yourself but for everyone else because you are not valid enough to not be eye candy. It's insulting to men and women in dozens of different ways leaving very few happy except those who only want ass and titties. Essentially everyone loses.
Another thing...as a woman...I can suspend my disbelief, but you have to be kidding me that a teenage Supergirl would feel comfortable wearing a skirt that literally only covers her ass, or that Psylock would wield her psyblades in stilettos without hesitation. These artists and the people who approve the art they are driven to make inadvertently tell me that these things are normal and every woman cares about being a sex object all the time. It's not about embracing sexuality or even being sexy because it is often sad. These powerful women are posed and dressed to be sex objects because they wanted to be. That is what they would have me believe, and in some cases that's true because the character is that way BUT that's a character thing not a female requirement. Catwoman is sexually confident and doesn't need a damn bit of male approval to know it. She walks into a room she can choose to own or not because she is Selena Kyle and she knows how to work the room and herself. Whether she's weather zipped up catsuits or cocktail dresses Selena Kyle is a sexy woman because no matter how you draw her she is drawn with confidence and written with confidence in that fact. When you pull down that zipper you almost dis empower that sexiness because she doesn't need to show anyone anything. She is one in charge not you.
There are MANY WAYS TO BE SEXY but not every woman needs to be sexy all the time or puts their sex appeal on display. I can't believe that in these worlds of fiction every woman tries to be a sex symbol or a 13 year olds masturbation fantasy without ever thinking about it outside of occasional jokes.