crossdreamers answered
crossdreamers:
I have never been fond of the term “girlfag”, and have spent some time with girlfags trying to come up with a better term.
The term was not intended at a slur, however. Quite the opposite, actually. It was coined by Jill Nagle in the late 1990s, at a time when the LGBT community appropriated a lot of smear words for its own purpose. As Janet Hardy has pointed out: This was at the time the column of gay activist Dan Savage was called “Hey Faggot!” Since gay men used it, the girlfags believed it to be a positive word in gay and queer circles, which it was.
Indeed, the term girlfag was based on the term fag hag. The term fag hag was coined by gay men for describing heterosexual women who associated with gay and bisexual men. It was originally meant as a slur. Later on it became a term of endearment, as it is today.
In other words: I guess Jill & Co believed that if gay men were allowed to call women fag hags, women should be allowed to call themselves girfags. This sounds reasonable to me.
Your historical presentation is interesting, though, and says a lot about the hostility against people who do not follow the expected pattern of sexuality and gender.
But following this logic, we must also abandon the terms queer and genderqueer. Queer originally meant strange, odd, peculiar, or eccentric. Many girlfags identify as queer. I would hate to see them banned from that term as well.
I would like to add that gay men have come up with a lot of alternative terms for fag hags, including queen bee, homo honey, fruit loop, Goldilocks, flame dame, fairy princess, cherry fairy, gayboy bunny, gabe (“gay” and “babe”), Tori (in honor of Tori Spelling and Tori Amos), and fairy godmother. Following your own logic, I suppose women who feel an affinity with gay men should fill tumblr with hate posts against gay men. I, for one, am unable to to get upset by this, as are my girlfag friends.
The gay tolerance of both fag hags and slur words tell me that the current criticism of the word girlfag is not so much about the the insult gay men might feel, but rather about forcing girlfags back into the closet. It is yet another example of intolerance against sexual variation and gender diversity. The girlfag-bashers lack the means to burn “the witches” at the stake, but they believe they can stone them with words. You really do not want to be remembered as one of them!

More on the real etymology on the word “faggot”
A good girlfag friend sent me a comment regarding the origin of the word faggot that is of relevance to this discussion. Here is what she says:
”Faggot” was (and is) a bundle of sticks used for kindling. However, the term came about in the British public school system. (British “public schools” are what in the US we’d call “private schools.”) Students in their last year had the right to be waited on by younger students, whose job it was to bring them snacks, take care of their clothing, etc. The rights of the older student over the younger one were extensive and typically not supervised heavily by school authorities, so it was common for the younger student to be pressed into, er, service for all sorts of activities.
“A very common form of service was for the young student to keep the older one’s fire burning (yes, the older students had fireplaces in their rooms). When the older student wanted a fire, he’d shout “Faggot!” and the younger student would be expected to show up with kindling. The path from the bundle of kindling to the other “services” is a short and self-evident one Eventually, the whole activity of providing services to an older student came to be called “fagging.”
My friend adds:
"It’s still not a pretty story, falling as it does well afoul of contemporary mores regarding consent, child sex, etc. But it is considerably less violent than the false one your correspondent is promulgating. (There is history showing that the relationships between older students and their "fags” was sometimes abusive and harsh, but sometimes tender and mentor-like.)“
Most sources agree with her interpretation of the origins of the term faggot.
And yes, there are girlfags with gay male lovers
By the way, one girlfag told me that her gay boyfriend did not appreciate being called bisexual. He loves this girlfag because he sees his lover as a man.
In other words: I was completely wrong about there not being any gay man/girlfag love relationships.
I apologize.