Originally Posted by
Endus
I like having a diverse cast. Much better than "angry caucasian male stereotypes #s 1-22".
The central issue here is that you see the "default" setting to be X, for a character, so there has to be a "reason" to deviate from that default. Typically, that means "caucasian dude in his 20s or 30s". By your argument, if the character's a woman, that has to be "important to the story", when it WASN'T important that he was a man, in the first place. Same for being gay, when being hetero was irrelevant, or black, when there's no reason he has to be white in the first place.
You don't need "reasons" for a character to be a teenage black lesbian rather than a 25 year old straight white dude. She is who she is. That's the story being told. Why do you have an issue with that? Why aren't you asking for the same justifications for more stereotypical characters?
Hell, in a lot of cases, you should be able to flip a character's gender or orientation or ethnicity, and have little to no effect on the story, unless that story's focused on that characteristic. Particularly if it's in a sci-fi/fantasy setting, where you can determine how much any of that "matters", culturally speaking. For instance, take Spider-man. Imagine he was a brand-new character with no history whatsoever, just introduced in Captain America: Civil War. Why would it "matter" that Parker's a white dude with a girlfriend? How is his story really all that different if he's a hispanic girl with the same girlfriend? Or a black girl with a boyfriend named Marty Jay? None of these factors are particularly relevant to Spider-man, and the central themes of power and responsibility. Which is why Ultimate Spidey dying and the mantle being taken up by a hispanic kid named Miles Morales worked so well. Because Parker's being white wasn't a factor to Spiderman. If anything, being a minority makes the "hated for the good he does" theme a little sharper.