Seeing the development of the whole “friend-zone” concept is, in fact, enlightening about the pervasive misogyny that’s still culturally foundational in America despite decades of progress.
It started as an observation that once someone had placed you in the “friend zone” of their mind, it was difficult for them to consider a romantic relationship with you.
It then picked up negative connotations when it was applied to women who flirtatiously imply the potential of a future relationship in order to have men perform favors for them that they would not do for normal friends. This sort of thing probably wouldn’t exist if it wasn’t for the pervasive cultural assumption that it’s the man’s role in society to earn money and, therefore, the way to woo a female mate is to throw money at her in the form of gifts and so forth. But up to this point the term was at least describing an actual thing that actually happens.
But then the wheels come off the bus, because in the lightning-fast memetic chamber of the internet the term continued to expand: Now it was any woman who politely said “no” when you asked her out on a date. But, of course, the negative ethical connotations stuck to the term — so now the entire concept of “friend-zoning” implies that any woman who says “no” to a man’s sexual advances is doing something ethically wrong.
This also simultaneously expands the other side of the term: It now applies to any man who is friends with a woman. But here, too, the negative connotations stuck to the term. As a result, it implies that “just” being friends with a woman is somehow a punishment or a failure.
This rapid progression from useful concept to misogynist ideology is all built around the lingering cultural scaffolding in which women are objects of desire which are pursued like treasure. Although this scaffolding is slowly being demolished, it’s both interesting and depressing to note (from the sufficiently safe distance of being a white male) that, like any construction site, this transitional period can actually be more vile and misogynistic in some ways than what came before: Leave intact the “pursuit of the virgin” but strip away the idea of “no sex before marriage” and you replace Lord Wessex from Shakespeare in Love with pick-up artists who treat women like Super Mario Bros. power-ups and their sexual resumes like a Call of Duty leaderboard. Leave intact the idea of “no sex before marriage” as a moral imperative, on the other hand, and you end up with all women being “whores”. The jagged edges of these half-forgotten cultural memes can be dangerous. (Which doesn’t mean, of course, that we shouldn’t be getting rid of them. That would be like arguing that the slaves shouldn’t have been emancipated because they were more vulnerable to lynchings without the protection of their owners. It just means that you have to anticipate that it will be hard work and a tough slog before the light at the end of the tunnel completely banishes the darkness behind.)