Using alternative pronouns is a respectful thing to do if the person requests it and I'm happy to do that. I don't mind being asked to change if I use the wrong one but I do like patience with the fact that I may not know or remember what is wanted so help is appreciated. Like Oniya I'll avoid use of pronouns if I can't figure it out.
I don't see any need to debate the issue.
1) Well, if you happen to think gender or sex confusion is something like a white guy deciding he's really a black guy then you don't see much need for debate either.
2) Replace Ze's and Per's or whatever with jargon from another subculture: furries, fans of japanese cartoons or economists. I expect you'll find something you wouldn't tolerate in daily speech soon enough.
3) Respect, meaning good manners not esteem, is something we have with flatulent strangers on the bus and those McDonalds employees eager to serve our children their horsemeat happy meals. It's rude to treat your friends with "respect."
Now, I think the point of accepting people that are "mentally" transgendered as something besides crazy is about saying reality is a mess and that's okay. If your first step in doing that is to invent a whole new pile of categories and terms then you're not really embracing ambiguity. You're just making new categories people don't fit into and don't want to fit into.
No one wants to be gay. They want to be a citizen, friend, neighbour... that is also, among other things, gay (and a fair golfer besides.)
If you're going to tell me about Cis... whatever, the wacky word for heterosexuals... If you start in on that I'm going to write you off as a person. It's the same thing when I hear someone dismiss "Socrates and other white dude philosophers." I'm thrilled. Because you've written off Socrates I can now write you off.
Because you've become the bigot. I'm not Ack Arg, good golfer, always willing to help someone out, thinks girls are pretty... I'm now The Cis. Now I come with a handy label and the rest is just details.
As it happens there are plenty of problems with the language. They're typically problems about jargon and news programs and politicians that have mastered the art of saying nothing. There are whole industries devoted to corrupting words and softening minds in order to pick pockets. They're impersonal and have truly awful consequences and they're hard to combat.
I hardly know what to say to the idea that English is a gender biased language. We've got holdovers in old material like man and mankind, which is aesthetically nice and as far as I know causes no confusion about whether it refers to the species or to a population of men, not even in kids hearing it for the first time. We do refer to people that are generally men and women as men and women but that's about it.
Is French going to result in sexism... or whatever the Cis thing ism is, because sandwich is a masculine noun? I don't think that's a silly question, it's just the one that lacks the usual noise of political correctness. I'd like to credit people with being able to make distinctions without having them beaten into their heads. That's generous. I'm a generous guy. Maybe you aren't.
And English has plenty in it to cover gender nonspecific references. Mentioning a person by name comes to mind. Or by title. Or They. They isn't accepted by your English Teacher but everyone else is just fine with it. If you can't work your way around it or are afraid to do so without the permission of the grammar police so be it.
We don't need to bring gender into discussions where it doesn't really matter in the first place, and removing it from this level of discussion can be a positive change. Let gender identity rest in conversations where it matters.
I have to disagree but I won't press the point.
We can get plenty of exercise on this idea of unilaterally butchering English to avoid offending a few people. People have the right not to be offended. Also to be isolated. Isolating vulnerable communities helps them protect themselves from violence, exploitation and mischaracterizations.
That's just the "Cis" talking though.
There is no reason anything that doesn't denote gender be applied only to trans people. It should be applied to whosoever desires it to be applied to them. I prefer to be called she, I'm transitioning. If I preferred ey/em/eir pronouns, then they should be applied to me.
Thing is, we don't actually get to be called things because we want to be called them. We can think of ourselves how we like but when we say what we think we're opening ourselves to the evaluations of others.
We can only associate with those that approve of and agree with our evaluations but I can't say it's especially healthy to do so.