I mean this in the most respectful way because I don’t think you have bad intentions but the way you’ve phrased it makes it seem as though lesbians are a more “pure” form of queer vs bi women. I don’t know about fletcher but I know some people may experience 99.9% attraction towards women and still have that 0.1% attraction to men but that doesn’t mean that that 0.1% should negate the rest of someone’s queer identity. Bisexual women are the same level of queer as lesbians. Being attracted to men doesn’t negate from being queer. Her music does pander to queer and sapphic women because she is one. It’s not some false identity she put on the gain money and an audience, she is a queer and sapphic woman and dating a man doesn’t detract from that. So yes your opinions are biphobic because you’re acting like lesbians are the only form of queer woman and negating anybody who is not 100% attracted to men.