Of course, 'same sex sex' has been going on for a very long time ... as it occurs in animals, I think it is safe to say "as long as humanity has existed".
Two things to take into consideration are,
a) historical attitudes towards "same sex sex" in general, and
b) Indian attitudes towards same sex sex, both modern and historic.
Quickly throwing out a few thoughts relevant to BKism, I'd say
Firstly, the "invention" of homosexuality and its rigid definitions as a fairly modern thing (meaning that in the past it was not so clearly and exclusively defined either as a tendency or a self-identification),
Secondly, this is still a prominent tendency within India, and
Lastly, that it is seen largely as a male problem, an extension of the male as an uncontrollable "lust dog".
For example, "cruising" in parks in metropolises is a lot more common than in the West and exists as a sort of sexual outlet for males who for social/demographic or financial reasons are not able to "afford" a "natural sexual outlet", aka "a wife".
I am over using apostrophe's there to emphasis that those are not my views!
India has serious male-female demographic issues due to
i) a predominance of poor rural males moving to large cities leaving equivalent females behind,
ii) female infanticide ... literally the killing off considerable proportion of unborn females.
In short, on top of a naturally occuring proportion of homosexuals, there just aren't enough "females to go around".
In such a scenario, a cult promoting that a certain proportion of male society willingly adopts celibacy is actually providing an essential service ... although, in the BKs' cases, not for the right reason.
I would say female homosexuality within India and BKism is an even greater taboo. Males are expected to be lustful and, one presumes, be looking for any hole to stick it in. Lesbian BKs on the other hand ... too contentious to consider I would say, e.g. is for what proportion is BKism an outlet for Indian lesbians
A) seeking to avoid marriage to male,
B) a medium to express their dominance (in the case of those with dominant tendencies).
There was an interesting movie which raised this issue in Deepa Mehta's Fire (1996) to which the habitual repressive morons in India
responded in their habitually moronic manner. India's Chief Minister Manohar Joshi at the time, a prominent leaders of the Shiv Sena political party, actually supported violent actions to shut down screenings of Fire, saying, "I congratulate them for what they have done. The film's theme (lesbianism) is alien to our culture."
The BKs have regularly courted Shiv Sena leaders.
Personally, I would remain highly cynical about the BKs overall intentions toward the LGBT community however "liberal" Conny and Florian might be. The BKs are skilled at exploiting whatever advantage they might find amongst followers or target victims.
And, as an aside, take into consideration the "T" element of LGBT, and India's long heritage of accepting transgenderism, and ask what the BKWSU attitude and acceptance of it is?
A prize for the first sari wearing male transgender Brahma Kumari being promoted to the position of centre-in-charge. God knows there are enough female BK centres-in-charge already wearing the trousers ...
Can someone ask Dadi Janki whether there will be any homosexuals in the Golden Age of humanity?
Can present day homosexual BKs accept a religion which believes that heterosexuality is the perfect norm for humanity, and, therefore, that homosexuality is an impure and imperfect expression?