It's open warfare now between the "L" and the "T" of the LGBT movement.

An organization for lesbians has launched a formal online blast at LGBT activists for calling them "transphobes" and they want the LGBT coalition to drop the "L."

The lesbians argue they are women attracted to women and there's no room for men who claim they are women.

Biology does make a difference, a big difference, they insist, and it's not enough to simply "identify" as being of a particular gender.

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The argument appeared in a letter the Lesbian Rights Alliance in the United Kingdom recently posted online that was directed toward Stonewall, the U.K. organization that campaigns for LGBT causes.

"Stonewall does not recognize or represent the many young women who reject conventional feminine stereotypes in appearance and sex roles, and who become lesbians at puberty," the letter charged.

"Instead, you support the trans argument that many gender non-conforming lesbians must really be men, born with 'male brains' in the 'wrong body.'"

The organization is demanding Stonewall stop claiming to represent lesbians, ordering the group to "Remove the L from LGBT."

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The activists explained, "Lesbians are biological women who are sexually attracted to, and have sexual and emotional relationships with other biological women, only."

They continued: "Being a lesbian is primarily about sexuality; it is a same-sex attraction. Stonewall no longer accepts this basic, socially accepted definition of lesbians. In fact it defines homosexuality as 'attraction to the same gender,' not biological sex.

"As a consequence you support the absurd idea that male-bodied persons can be lesbians, and you demand that they be accepted as such by actual lesbians. If we refuse to accept these men as lesbians you label us transphobes and 'TERFs' unleashing a torrent of hate speech upon us from your supporters."

"TERF" is a transgender term for "trans-exclusionary radical feminist," which many feminists and lesbians consider a slur or even "hate-speech."

The Christian Institute, a U.K.-based organization advocating for traditional marriage, points out the arguments are over Stonewall defining homosexuality as being based on gender "as opposed to sex."

At a London "Pride" event earlier this month, activists held banners such as "lesbian = female homosexual."

Their message, bluntly put: Men who think they are women are not really women.

LGBT organizations accused the lesbians of bigotry and ignorance.

Reported the Institute: "In recent days the government has launched a 16-week consultation on the Gender Recognition Act which could see safeguards for legally changing sex removed. Currently, it is necessary to have been diagnosed with gender dysphoria, and to have lived as if a member of the opposite sex for two years.

"But Theresa May has indicated her support for ‘self-declaration’ – where a man can legally change sex simply by saying he is a woman, and vice versa."

The lesbian alliance accused Stonewall of "imposing compulsory heterosexuality on lesbians" by arguing that men who think they are women are actually women.

"In your support for trans ideology you are literally erasing young lesbians, telling them they must mutilate their own female bodies to impersonate men and appear to be heterosexual. In 2016-17 female adolescents comprised over 60 percent of young people seeking to transition at the gender identity development clinics, the majority of whom are attracted to their own sex," the lesbian group said.

LGBTQNation reported how LGBT activists they describe as "anti-transgender" literally took over the "Pride" parade recently in London.

"A group of eight women blocked the parade and then marched in front of it," the activists reported.

The women shouted, among other things, "A man who says he’s a lesbian is a rapist."

Later, Pride in London organizers said, "Yesterday a group of individuals labelled as 'Get The L Out!,' who were not a registered parade group, forced their way to the front of the parade to stand on the rainbow flag. Their behavior was shocking and disgusting, and we condemn it completely."

An analysis in PJMedia summed up the events this way: "We told you it would happen, and it finally has. Conservatives long predicted that feminism and transgenderism were ultimately incompatible, but for a long time it seemed like the LGBT movement might just hold them together. Well, on Saturday that movement burst open, as lesbians led the parade in attacking transgenderism."

The Economist recently published a commentary titled "The gender-identity movement undermines lesbians," in which performance artist Pippa Fleming explains why lesbians are concerned over their identity:

"There's an African proverb that states: 'If you don't know where you come from, how do you know where you are going?' Some of the most powerful black people known for their political analysis, social commentary, activism and legacy during the civil-rights, gay-rights and feminist movements were black lesbians. Oops! Did I just say 'lesbian', that dirty seven-letter word that has the GBTQI community scrambling to apologize for or afraid to associate itself with? Lesbianism is as ancient as the cosmos, yet it is a threat to patriarchy because it does not centre [on] males, nor does it seek male wisdom, power or validation. Instead of finding solace within our community against the threat of misogyny and homophobia, lesbian identity is being written out."

She explained, "In this current wave of 'free to me' gender politics, any man with a penis can claim to be a female and expect entrance into female-segregated spaces, such as locker rooms, sports teams or colleges, without question. But don’t twist it; the generosity does not flow in both directions. Just ask the women who crashed the party at the male lido in Hampstead Heath in London in May: they were promptly escorted out by the police. Lesbian identity is now being dubbed as exclusionary or transphobic. You’re damn right it’s exclusive: lesbians have a right to say no to the phallus, no matter how it’s concealed or revealed."

Warning that "Lesbian identity is now being dubbed as exclusionary or transphobic," she added, "The gender-identity movement’s attempt to rebrand the lesbian as queer, and the pronouncement that 'anyone can be a lesbian,' are nothing short of erasure."