That is a lot of assumption and generalization. Yes, we've seen some of that in posts, from both sides. But at the same time, there have been less emotional and more logical reasons why people are "okay" with gender locked races. Personally, I was neither for or against it. I was fine with having male Viera, and I'd be fine with having female Ronso. I care a little with how they'd look if they do add them, but not enough to make me lose sleep over it if they're not the way I envisioned them.
However, when I see posts like yours, it makes me question motives. You come across as the one with an agenda, and something to prove. While many of the people that allegedly "white knight SE," are more or less just saying they're fine with whatever the devs decide. You may call that complacency. I'd call it contentment. Some of you seem intent on making this game into a political/sociological statement, while the rest of us just want to play a game.
Every game has issues, and the devs can NEVER please everyone. Most people accept that. I think too many people get attached to games (MMOs in particular), and start feeling their characters are representative of themselves. So they bring all of the world issues into an "escapist" game along with their character. Some of these issues can be addressed by work-arounds, while some cannot. But at the end of the day, it's just a game.
Which brings me to the second part I quoted. Glamour matters to you. That's fine. But it doesn't prevent you from playing the entirety of the game. In other words, it doesn't change the game. That's what the "other side" is saying quite frequently. This Viera/Ronso issue hasn't effected how you have played the game up to this point in time, so they find it hard to sympathize with the take-my-ball-and-go-home "I quit" threads.
Instead of "quitting" or "boycotting" try a more constructive way of expressing your wishes and desires. Maybe you can convince the devs to change course later. Like, maybe a side story can change things in world, and allow those other genders to be introduced later. Right now, everything has been decided up to probably 6.0 and beyond. They can't just "add them in" tomorrow. It will take time. Demanding they delay an expansion, and take a hit to their income? Telling them you refuse to support them unless they do things your way? How does that fix things? I'll answer for you: It doesn't.