let me know when and where people get tortured and murdered for being straight and therefore talking about being straight after a life of discrimination in that alternate scenario where it's actively silenced is an act of rebellion. cause let me tell ya if people actively tried to destroy a part of you and suddenly you were finally able to find a place where it might be okay to be yourself, and you were surrounded by people just like you, you'd make up for all that time you spent hiding yourself.
to be fair straight people talk about being straight all the time anyways, pretty sure that's 90% of straight romance novels