Where did female supremacy come from?

I would argue the "black feminist" movement specifically is essential to understand how the prototype of ethnic disintegration was designed by comissar oppressors. A conspiracy prone view of the subject that is pretty accurate

Gloria Steinem first came across the radar of Black men in 1978 when Steinem put a book called “Black Macho and the Myth of the Superwoman” on the cover of Ms. Magazine, the magazine which she controlled. The book was “written” by a Black “feminist” and “activist” named Michele Wallace who came out of nowhere. Wallace was in her early twenties at the time, yet she was being touted as the “leader” of Black feminism. In the book, Wallace called abolitionists like Harriet Tubman and Sojouner Truth “ugly” and “stupid” for supporting Black men. She called Black Revolutionaries “chauvinist macho pigs” and advised Black women to “go it alone.

It's actually almost impressive how much damage one tiny group can do, while staying hidden from the public eye and using frontmen to distribute their poison. More details on the "new left" social engineer:

GLORIA Steinem is hardly the anti-establishment figure she pretends to be. The Central Intelligence Agency launched Steinem’s career as a leftist activist. In the recorded interview above, Steinem openly discusses her work as a CIA agent, a fact which she later attempted to suppress. Here are more details from Kerry Bolton’s book Revolution from Above: Manufacturing ‘Dissent’ in the New World Order (Arktos, 2011): One of the seminal ideologues of feminism, Gloria Steinem, got her start as part of the CIA policy of co-opting the Left during the Cold War era. From this beginning she was promoted and nurtured by the foundations and others of the globalist oligarchy.

In 1958 Steinem returned from India and was recruited by the omnipresent Cord Meyer of the CIA to direct ‘an informal group of activists’ called the Independent Research Service. This was part of the CIA’s Congress for Cultural Freedom. It should be kept in mind when considering the pivotal role of Cord Meyer, that he was not only working as a CIA operative in recruiting Leftists as part of a Cold War anti-Soviet strategy, but as we have seen, he was a dedicated internationalist who co-founded the United World Federalists with James P. Warburg, and held the USSR responsible for having stymied US post-war efforts to create a World State through the UN.

In 1967 the New York Times reported that the CIA had funded American students to attend the Leftist World Youth Festivals in Europe. It was as an American delegate that Steinem was funded by the CIA to set up her Independent Research Service...

When you view such people like Gordon as intentionally inflicting a social disease (Ethnic disintegration) by attacking a social structural unit (male/female relations within an ethnic group) you can start to understand their MOA.

Steinem is like the George Soros equivalent of feminism: the most easily visible tip of the iceberg. If Steinem died, a different tribeswoman would replace her role.

Angela [Davis is another golem like Michele Wallace](sfgate.com/opinion/openforum/article/Gloria-Steinem-had-strong-influence-on-black-women-2335328.php):

As national treasurer of the 1970s-era "Free Angela Davis" campaign, Steinem was a critical link in the legal defense of the Oakland scholar then jailed for her radical politics. She crafted the television speech that black Rep. Shirley Chisholm (1924-2005) delivered in her historic 1972 bid for the presidential nomination of the Democratic Party. And it was at Steinem's direction that Ms., in the early 1970s, began to publish Alice Walker and later appointed her one of the first black editors at the magazine. This, long before the author won international acclaim for her Pulitzer Prize-winning novel, "The Color Purple."...

I would argue that even from a white/asian perspective one should Ignore her racial inequality rhetoric and push for details on her intra-black community stances to see how she incites hate there as well.

The "globalist" Beate Gordon subtly did something similar in the 1940's by attacking a large part of the Japanese family structure. During the 1940's post-WW2 reconstruction as she wrote the "gender relations" part of that constitution, and her tribal elites are further trying to attack Japanese homogenity (and increasingly also that of China) as visible today. The "globalist" promoted/chosen "miss Japan" 2015 was a half african woman, who stated; src

“I want to start a revolution,” Miyamoto added with a laugh. “I can’t change things overnight but in 100-200 years there will be very few pure Japanese left, so we have to start changing the way we think.”

The woman who led and promoted this "miss Japan" had a blog at "Inesligron.com", now down/removed, but older web archives of that page had posts that mention her sons Bar Mitzvah