That all comes down to what you think the basis of female jealousy is. When one woman is violently jealous of another, is she subconsciously acknowledging that her rival is sexy, and that the only way to compete is to physically dominate her?
I don't believe any one person can answer what the basis is even if they're women as our sphere of cultural influence is a very potent and successful bias. For example, in You live only twice, Ian Fleming goes on to claim Japanese women are attracted to Bond because he has chest hair (and in the book he's way more patronizing and racist, with remarks like how America will take over the spy game because former colonies reject British guidance). In reality, which was true back then as it is true now, the same gene that causes Japanese people to not have wet ear wax is the same is that prevents them from breaking out in sweat that smells. It's no secret that women by a base impulse (as it reminds them instinctively of disease or otherwise general bad health) detest bad smells, so the choice isn't that hard (though it's also no secret most Japanese are raised to think we could never accommodate to their culture and lifestyle).
If we can look beyond peer pressure and strict societal gender roles, there lies the basis of jealousy, which is often a battle cry to be individual from the expectations thrusted upon them. Yet for the very individual herself, thinking outside the norms entrusted in her from birth isn't easy. We know for a fact that Russia feels the mere mention of lesbians and teaching they exist create lesbians, and quite a few Christian fringe and alt right movements feel the same. Actually their think tank is right back in America who're also convinced masturbating and watching porn should be banned. Women like that have a zero percent chance of ever getting turned on by fighting other women. It's very possible they'd kill her.
The second issue is internalized misogyny. Many a woman I grew up with could only categorize a rival on the Madonna/whore scale, obviously within this framework leaning towards whore. When a woman goes public (and why not, they're encouraged to do so) with calling the rival a whore, there's no sexiness in it, only for the purpose of picking up men.
That is not saying in places where the sexual revolution reached full maturity the things that Rivals brought up don't exist, they do, they're just part of that culture, but the question was not region specific.
