I don't mind stories with multiple pairings but beyond two it usually borders on unrealistic. It's like that kiss and white lily series where literally EVERYONE is gay and it's like lol
I guess, for me at least, it just depends on what kind of story it is. If it's a comedy, feel-good story, or just a romance that happens to be occuring between women, then I don't mind much. But if it's a more serious story and the author is trying to get across to the reader the lonesomeness and tension, and even danger, of having to keep your love a secret from a society that considers it wrong, then the entire cast turning out to be gay by random chance can sort of make it feel disingenuous.