Back in 1980, in Minneapolis/Saint Paul at least, homosexual males & homosexual females had very little to do with each other. Each group had its own hangouts, social events, activist groups, & lifestyles. The University of Minnesota had student groups, the long-established University Gay Community (entirely male) & the upstart University Lesbians.
My fiancee & me, having inherited the new Neopagan/Wiccan student group (first in the nation, btw), figured that we should try to build bridges, seeing as how a significant minority of our membership was openly gay, lesbian, or bi. We found both UGC & UL to be warm & welcoming.
From that & dozens of other bridges, UGC eventually became ULGC (though UL remained to focus on issues of gender equality).
Then the darned bisexuals started organizing. At first, the members of ULGC & similar were concerned that those who had the privilege of hiding "under cover" of heterosexuality would dilute issues that directly affected homosexuals. Soon enough, though, they realized that plenty of their members were to some degree closeted, & rapprochement was achieved.
...until people identifying as "queer" began to coalesce, & there we went again.
Around 1982, a few lesbians began to speak up to their fellows about having a right to enjoy BDSM, nonmonogamy, & sex
qua sex in general. Until then, the political line had been to a sort of hippie normalcy: quiet monogamy, vegetarianism, minimal drinking, social-center dances, coffeehouses. (The gays, meanwhile, had big clubs, bathhouses, wild parties, lots of drugs, & sex in the parks with random strangers.)
Sex-positive feminism was widely seen as an oxymoron. Those women who defended BDSM were commonly denounced as "giving in to patriarchalist thinking" & suchlike; the pro-sex faction didn't fare much better. But they kept at it. In 1984,
On Our Backs was launched, specifically to set a standard for lesbian-audience porn. (They were (of course) denounced by
Off Our Backs as "pseudo-feminist.") By 1985, the founders had moved into porn film, with Fatale Video.
When we began to live our lives as openly poly, we got a LOT of positives from the homosexuals, bisexuals, & Neopagans, not to mention swingers & Naturists & Unitarians.
And clearly any statement that "stuff like that ain't gonna happen" is someone talking out their... um,
hat.