[quote cleddyf]Please treat your child with respect. Finding your identity is a hard process, and they'll benefit from your help. What matters more to you? Helping your child properly figure themself out, or refusing to acknowledge them in the way they see themself, likely hurting them in the long term?
It really doesn't matter if it's a phase or not; they need your complete support. You should refer to them with their correct pronouns, and use their new name, even if it makes you uncomfortable. It's about their comfort more than anything, and they need a positive support network from friends and family, regardless of whether it's just a phase.
They/them pronouns are completely grammatically correct, and have a deep history, first occuring in a 14th century poem. It's likely you're not used to them as a fixture in modern society.
It's certainly interesting that you were relieved they'd come out as gay beforehand, instead of trans. I think this is an embedded problem with a certain line of thinking. I hope you take your child's feelings into account - having had firsthand experience with gender dysphoria, it feels incredibly painful.
m.youtube.com/watch?v=1pTPuoGjQsI
^ I recommend watching this video, made by ContraPoints. She highlights the intrinsic problems with the gender critical line of thinking, and her videos are insanely well-produced. I also recommend Philosophy Tube's video on Transphobia:
m.youtube.com/watch?v=yCxqdhZkxCo
as he explains it very eloquently, from an ethical, moral, and philosophical viewpoint.
I believe a lot of transphobia comes from repressed identity problems stemming from childhood socialisation. While I don't necessarily believe you're overtly transphobic, it seems to me that you're unconsciously perpetuating harmful stereotypes about trans identities. I suggest taking a deep look into your own gender.
Perhaps you feel a bit odd when someone refers to you as your name. Perhaps, sometimes, you feel trapped inside yourself, unable to escape. Perhaps on a particularly bad day, someone referring to you as the gender you were assigned at birth might make you feel slightly weird. This type of thing isn't always easy to pick up on, and it might hurt to focus specifically on that (if thats how you feel). I find taking an introspective look into your own identity can be freeing.
Once I realised how disconnected I felt from my birth name and pronouns, it was like I couldn't focus on anything else, other than the 'why do I feel this way? is this normal?' Questions like those. But eventually, I figured out my real identity and I've never looked back.
Thanks for reading