From the Rabbi Brother in Law:
There ya have it. Similar to many of the Christian faiths. Things are taken out of context and manipulated for one's own self-satisfaction or to justify their immorality.
Interesting. He can just reject the Talmud out of hand when it suits him.
Why is his opinion more valid than the hundreds of thousands of Rabbis who have agreed with the opinion held in the Talmud for centuries?
By that virtue, he can also say that it is perfectly Kosher to eat cheeseburgers, which would fly in the face of every single Jew alive.
Because it isn't the Torah that forbids it, it's an "opinion" in the Talmud.
Sorry, but Rabbi or not, he's spitting in the face of Jewish belief and opinion.
What sect of Judaism does he belong to that no longer considers the traditional Jewish interpretation of the Genesis story valid?
By removing the belief that Adam and Eve were once one, he is also removing the Jewish argument for the sanctity and holiness of heterosexual marriage.
The six sexes are not "modern" Judaism.
The sex of "tumtum" appears 900 times in the Talmud alone. The Talmud is hardly modern. That statement alone is pretty good illustration of how actively your BIL is misrepresenting things.
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Now, as far as judging immorality...
What is immoral about someone being born with an intersex disorder?
You never answered my questions- Do you believe that people are born with intersex disorders?
If G-d creates intersex children, who are YOU to question His creation?
If G-d allows innocent children to be born with intersex disorders, how can you be certain that it is completely impossible for someone to be born with a male brain and a female body?