Ehhh. . . no. In my experience, the more enlightened people are, the more gender and sexual orientation are merely cosmetic. Mind you, that doesn't mean they don't get their freak on, but sex is more of a really fun pastime than something that torments their minds and defines their identity. Same with fictional characters. For a lot of "hard" sci-fi, while traditionally male-dominated, you can gender swap (and straight/gay swap) any number of characters and it'd be the exact same story, because these characters -- when "on screen", at least -- are using their higher brain functions. If a character is an engineer, it scarcely matters if engineer is a he or a she; what matters is whether or not engineer character knows how to avoid a warp core breach. What they do in the bedroom is the least interesting part of them from the author's PoV, or at least irrelevant. The problem is that if your stated objective handed down by the publisher or executive producer is to get asses in seats, sex sells and smart people are "boring". So, there's pressure to make everyone dumb and manufacture drama and fuck each other. If you're going to write, say, a trashy romance novel or trashy action movie, you need to channel your inner dumbness, the core of what we are as human beings.
So I have to disagree. Because when it comes to stupid, there are HUGE differences between male stupid and female stupid. Irreconcilable differences. Both are delusional, reactionary, and hysterical, but they manifest the dumb in vastly different ways, including how they map their desires on the opposite gender. Hell, just look at what men vs. women spend their money on. There's billions of dollars invested in just the marketing of male and female impulses, to say nothing of just how much of the global economy depends on exploiting the male dumb or female dumb that resides in all of us. Trying to appeal to both is a bit of a challenge, and has been done, but financially speaking, it's as often as not a safe bet to not try and just go for broke with fanservice, an issue quite visible and persistent in the video game industry. Being straight I can't speak for homosexuality as much but when it comes to gay stupid and lesbian stupid, I'll comfortably wager they're every bit as divisive and ridiculous as straight male stupid or straight female stupid, for no other reason than stupid is stupid.