If you think depicting a character as a sex-repulsed asexual inherently infantilizes them, that’s aphobic.
If you think depicting a character as a sex-averse asexual inherently infantilizes them, that’s aphobic.
If you think depicting a character as a nonpartnering asexual inherently infantilizes them, that’s aphobic.
If you think depicting a character as a black-stripe asexual inherently infantilizes them, that’s aphobic.
If you think depicting a character who is any of those types of asexual inherently makes them inhuman, robotic, heartless, evil, monstrous, or a bad stereotype, that’s aphobic.
If you think depicting a character as sex-favorable means they can’t be asexual, that’s aphobic.
If you think depicting a character as partnering means they can’t be asexual, that’s aphobic,
If you think depicting a character as someone who has had or enjoyed sex means they can’t be asexual, that’s aphobic.
If you think depicting a character as someone who has experienced or does experience a little bit of sexual attraction means they can’t be asexual, that’s aphobic.
If you think depicting a character as a romance-repulsed aromantic inherently infantilizes them, that’s aphobic.
If you think depicting a character as a romance-averse aromantic inherently infantilizes them, that’s aphobic.
If you think depicting a character as a nonpartnering aromantic inherently infantilizes them, that’s aphobic.
If you think depicting a character as a green-stripe aromantic inherently infantilizes them, that’s aphobic.
If you think depicting a character who is any of those types of aromantic inherently makes them inhuman, robotic, heartless, evil, monstrous, or a bad stereotype, that’s aphobic.
If you think depicting a character as romance-favorable means they can’t be aromantic, that’s aphobic.
If you think depicting a character as partnering means they can’t be aromantic, that’s aphobic.
If you think depicting a character as someone who has had or enjoyed a romantic relationship means they can’t be aromantic, that’s aphobic.
If you think depicting a character as someone who has experienced or does experience a little bit of romantic attraction means they can’t be aromantic, that’s aphobic.
And all of this applies to every other aspec identity as well.