aight look, i don't think GTA needs to be a bastion of equality of all, especially since the characters in the game (mainly michael and trevor) are bad people, and that makes it interesting. and i do think that focusing on making sure a creative piece is equal to everyone ("oh it's gotta have one black guy, one chick, a cripple") can have a negative effect on the story and what the author wants to convey
however, the argument that "people wrote male characters just cus they wrote male characters" or people do ANYTHING just cus, like, totally devalues the impact that society has on creativity and art. You're gonna tell me the characters in every single story ever written just happened to be male or female or black or white or blind or crazy, etc. just cus the author decided "yeah alright".