I believe these stories are no better than the stories of Yeshua’s “virgin birth” (irrelevant to the divinity of Christ), and “Mohammed Was Carried Away to Heaven” at the plateau at which the last Hebrew temple stood.
Those stories were told as a means to secure followers who NEED “miracles” in order to be followers (which Yeshua warned the apostles of).
The “Jesus Was Married” stories similarly seek to use the fantastic “mystery” claims they make to lure away those of some faith.
Christians need to deny them any relevance to their faith, and KNOW that all questions that NEED answering will be given when and how G-d deems YOU should know them. Do not let such questions divert you from your faith.
Here is a good lesson about miracles.
http://www.avpc.org/files/4814/6633/2342/06192016.pdf
That same lesson should be applied to “mysteries”. Your true faith does not require you to seek answers to them when G-d has not already given them to you, and if G-d has given them to you, then treasure them as gifts received not as gifts you can convince anyone else of. They too will come to “know” when G-d chooses, for them.
Actually, the writers of the Gospel believed that their fate in eternity depended upon their being accurate. If they made stuff up -- even to secure followers -- they would be damned.
That's a pretty good incentive NOT to do as you suggested they did.
Couldn't care less about the myths of Mad Mo, but the virgin birth of the Messiah was an ancient prophecy (see Isaiah 7:14) that WAS relevant to the Divinity of Jesus Christ as well as a sign of the Messiah given by God 700 years before he was born. If Jesus was not born of a virgin, he wouldn't BE the Christ!