I'm just so over the whole gender bullshit excuse used for Yamato not joining. Since when has gender and identity politics been the criteria of a Straw Hat joining?
Yamato calling herself a man or whatever the fuck she wants to call herself has more to do with her trying to be Oden, than an identity that she would individually strive for. Do people honestly think Yamato started calling herself a man NOT because of Oden?? Therefore, it shouldn't matter whatever Yamato identifies to be when it comes to joining the crew. I certainly don't care, Yamato can be man, woman, whatever, Yamato's gender shouldn't be used as an argument for Yamato joining the crew or not.
Gatekeeping a potential straw hat from joining because of their gender is one of the weakest excuses i've heard. Not to mention the fact that Luffy has never been bias from a straw hat joining because of their gender.
Of all the current potential straw hats, Yamato is still the one with the most potential to join given her history (friends with Ace, inspired by Oden) and reasons (wanted to leave anyway, can't achieve dream by staying on Wano-must leave and explore the world anyway).
As for Carrot, I won't mind her joining, as long as Yamato joins too. As a character i find her bland, and the whole 'Pedro's death and dawn thing' still isn't a compelling enough argument for me that Carrot is a good Straw hat candidate. The biggest thing I'm still waiting from Carrot is for her to say that she actually wants to join and ask Luffy himself, or luffy ask her vice versa- something that EVERY straw hat has done before joining. And with waiting for Carrot to do this for 3 arcs now, still only interacted with just half the straw hats, and also disappearing every now and then in Wano-like a back ground character, being off paneled by Perospero: my interest in Carrot as a Straw Hat has only diminished every time- not increased.
But to me Carrot ain't the worst possible candidate, that award goes to Momonosuke. A useless, whiny little kid, really? I don't find him the slightest interesting or compelling as a character. What's he even supposed to do if he ever joins? Drool over nami's tits all day? We already have Sanji for that covered.