I've been reading these threads for a few weeks now, and pedantry has overcome me to the point where I had to create an account. Please forgive me if I tread on any unwritten rules.
For those wondering, the last panel
2217 is where Tai tells Faye that she's already written slashfic of Marten with each of the interns.
So am I and I call everyone mate, as do all the people I know of all genders. My girlfriend's best friend is trans and she refers to him as her 'best mate' (said friend goes with male pronouns in fairness).
I would venture to suggest that if the individual in question is trans and goes by male pronouns, it is quite likely that he is a trans man, and thus it is not unexpected that his friends would use male-coded terms to address him. In short, this is not actually an argument in favor of 'mate' being a non-gendered or unisex term.
It matters cause people say we can't talk about it, yet here we have examples of it being made. Ya can't put the genie back into the bottle once ya open it.....
There's a thing called context, that's very important in these types of discussions. Specifically, there's the context in which (as has been exhaustively explained over and over in this and prior WCDT threads and in the thread specifically devoted to the discussion in question), that trans* people's bodies are considered public property, and subjected chronically to all manner of dehumanizing and excessively personal questions and discussion of same which cis people simply do not experience. So, that is why it is, in fact, a different conversation, and the fact that other character's genitals have been discussed/mentioned is not, in fact, germane in any way.
It's a shitty situation, but it does seem to be getting better, not just here with Claire as a great character who I don't see as trans* unless it comes up in comic, but with the character of Sophia in "Orange Is the New Black" (blanking on the actress's name).
Laverne Cox. Who I hope to see in lots of things in future, I'm a huge fan. She and her twin brother M. Lamar have a very interesting interview
here, about identity, gender, race, and sexuality.
Listen, I'm just going to put this out there. ...
Best of wishes in your future endeavours and hopes that your situation improves. My husband is from a similar background to yours, and his situation has, although it involved moving several hundred miles and eventually cutting off contact with his family. So, you know, for what it's worth. Anyway, you've all my support.