He disavowed his own daughter long after he knew she was a lesbian, because it became a public matter. There have been rumors of child abuse, which would explain why she ended up as a dike. The problem is that this kind of topic isn’t really tolerated in HK, especially after the handover in 1997. She knows if she says anything about the nationwide hero/idol (a supposedly impeccable father figure), it’s over for her. The problem of losing face in Asia has more value than being molested by a family member, and even more when it’s about a worldwide celebrity.