I don't understand why you mention "childless couples", Raul. The idea that Jesus married Mary Magdalen and fathered a child, and that the Holy Grail was actually Mary Magdalen as the vessel for that bloodline, and that a direct descendant of Jesus and Mary Magdalen is waiting in the wings like King Arthur to return and take over when needed, has been around for a long, long time. Cf.
The Holy Blood and the Holy Grail. Cf. Dan Brown's
The Da Vinci Code.
I find it hard to get too excited about such revelations of hitherto hidden knowledge.
For one thing, canonical Christianity has many problems, but
not being weird enough already (without the aid of apocryphal documents) sure ain't one of them.
For another, I really don't see how viewing Jesus as a married man might solve the misogyny problem.
Agreed, Mary of Magdala was important to Jesus. She's mentioned several times in the Gospels, and was the first person to whom he appeared and spoke after the Resurrection. As a feminist, I love this. It seems an obvious endorsement of women's significance as more than sexual objects.
Alas, no, she's still widely regarded as a sexual object.
Within the official tradition, Mary Magdalen has been depicted as a prostitute (although there is no Biblical evidence of this).
Outside of the official tradition, she's been called Jesus' wife or lover.
Because SEX!
Women could only EVER matter to ANYONE, because SEX!
Sigh.