Oh boy...so many people are abusing that tweet that states Jax can also use he pronouns...Despite the fact it's only usable because Jax is a boymoder, aka, someone who uses he/him pronouns because they're not ready to come out yet due to fear. And you're proving Jax right by eagerly calling her he/him when given the option to.
Not only that, but previous posts literally state Jax is at her peak when she transitions, finally happy with her body and no longer miserable.
So yes, you can use he, but at the end of the day, Jax isn't actually HAPPY that you can.
Circus Jax: He/Him (because Jax is still in denial)
The Jax who came out: She/Her, obviously
Leeroy/Lee: He/Her (He in public, but she with close friends)
The way some of ya'll just REFUSE to use she/her, (even trying to use they/them just to avoid that fucking pronoun), SICKENS me. You see the most miserable man ever, then see a universe where he is a she and THRIVING, and are still gunna deny her as trans fem because the creator gave you a slight leeway to do so. This is the Zooble situation all over again. Zooble can use all pronouns, and what did people do? Instantly use any pronoun EXCEPT they/them.
Edit: Do I sound too harsh in this? The whole Jax thing just reminded me of the Zooble situation, and that made me sad. It's so hard to get representation, and so when people kept only calling Zooble by her/he pronouns, it felt bad. I imagine that's how some trans fem people are feeling right now with Jax. ESPECIALLY with the people calling them crazy or sensitive for feeling hurt when people deny female Jax.
Look, at the end of the day, I can't, nor do I want to to, control your opinion. All I ask is that you pause for a moment and reflect, ask yourself WHY you're so determined to not have a character be trans fem even when the narrative says they'd be happier as a woman.