Have you even played GTA? R* don't push agenda in your face like other developers. Quite opposite Gay Tony while being gay IS actually like-able character exactly because it's CHARACTER FIRST and GAY SECOND. He is not in the game just to cater some group of players, he is not gay because it's popular, he is not gay just to shove it into your face, he is WELL WRITTEN character that happens to be gay.
Not only that but(!) GTA5 even has series of quests about "Strong Independent Woman" that are cranked up so much that they actually show all the absurdity of many rage-feminists.