It seems a strange thing to me to claim to follow a faith that has no definite set of beliefs that all must accept
Sometimes, "truth is stranger than fiction."
I'm just saying how it looks to me. I could be wrong. It looks to me like with rare exceptions, anyone who wants to can join, no matter what they believe, as long as they're willing to say whatever members of Baha'i councils want to hear. I'm sure that the House of Justice knows that there are many Baha'is who don't believe what Baha'u'llah says about Himself, and many who don't even believe in God, and I don't see it trying to have them all removed.
... or that someone can claim to follow the teachings of a prophet but then choose what parts to accept and what parts to ignore in those teachings.
ROTFL! Seriously? You don't see multitudes of Christians doing that? Do you know what is taught in most Christian seminaries? Do you know that there are dozens, possibly hundreds, of Christian ministers who don't believe in the divinity of Christ or even in God, but who keep on pretending that they do? If you're wondering why, read some of the stories from the Clergy Project.
I'll admit that it traumatized me when I first found out that there are many Baha'is who frankly aren't trying to follow Baha'u'llah at all, and a few even trying to turn other Baha'is away from following Him, but now that I'm over that, it makes good sense to me not to exclude them from the membership, as long as they don't try to destroy the usefulness of the community for Baha'u'llah's followers. However that may be, I trust God and Baha'u'llah enough not to worry about it.
I am a bit puzzled over this approach since homosexuality is certainly nothing new in the world, and in some cultures it was an expected norm that a man (especially a rich man) had a young boy in his household to offset his sexual needs. It was not viewed as anything unusual or offensive. God's word OTOH has always condemned unnatural sex as a perversion. So the only sex sanctioned by God was to be expressed within the bonds of scriptural marriage which is only between a man and a woman, according to Jesus. (Matthew 19:4-6)
What in homosexuality today gives you the impression that what we understand "homosexuality" to mean isn't what what God's description of it is? What do you see as "dishonest" or "treacherous" about what the Bible teaches and the moral standards it sets?
To put all my cards on the table, the only prohibition I see, in Baha'i, Muslim and Christian scriptures, is against the practice of substituting a man in the place of a wife, in an imitation of procreative union. That's all, I don't see any prohibition against anything else that anyone calls "homosexuality." Specifically, for example, even though Leviticus prohibits substituting an animal in the place of a husband or wife for that purpose, it's conspicuously silent about what women can do with each other. I don't think the prohibitions have anything at all to do with sexual stimulation. It looks to me like the purpose of the prohibitions is to regulate the use of penises. I don't think it has anything to do with sexual attractions, falling in love, enjoying sexual pleasures together, or anything else that "homosexuality" means to people today. I also don't think that this is the time for any institutions to be trying to enforce that prohibition on everyone, especially in ways that penalize innocent people, and serve no purpose other than fundraising.
That's my opinion, and I might be the only Baha'i in the world who sees it that way. Anyway, I'm just putting my cards on the table, for transparency, not to try to convince you.
Thinking about how to explain to you the harmfulness and even deadliness of people saying "homosexuality is a sin," I don't think that that you could understand it from any amount of discussion. You would need to read the stories. If you hadn't already seen anyone saying that, now you have. I am saying to you that multitudes of people saying "homosexuality is a sin," has grievous and sometimes even deadly consequences in the lives of some of the most innocent people, people who struggle and struggle with all their hearts against same-sex temptations. Besides that, sometimes it drives them into the arms of wolves. Why do you have to say those exact words, "homosexuality is a sin"? Where in the scriptures does it say you have a right and a duty to substitute
paraphrases of scriptures in the place of the
scriptures themselves, even when it has such harmful effects on people's lives? Maybe
you don't see any difference between "Thou shalt not lie with mankind, as with womankind: it is abomination," and "Homosexuality is a sin," but it can make a difference between life and death for a person struggling against same-sex attractions. Where do you see God commanding you to say those exact words "Homosexuality is a sin," instead of using His words, "Thou shalt not lie with mankind, as with womankind: it is abomination," no matter how much damage it does to people's lives, to substitute your words in the place of God's?