It reinforces the entire "Lesbians exist because straight men find them hot" thing. I mean, I don't think she's a homophobe, but it's a bit... tacky at least. Incredibly problematic is probably overstating it though
... literally the entire song? The lyrics are about how she's NOT gay/bi and drunk kissing a girl just cause she's drunk and it seemed fun, and the whole song is trying to be koooool and edgyyyyy and hotttttt to get her noticed. It's desperate and try-hard