As I've said in other posts, I have not read the book, but I had assumed that in the DVC:
1. Christ doesn't go to the cross and die.
2. The body of Christ is not ressurected on the 3rd day.
3. Christ does not ascent to be at the right hand of God the father.
All of which are standard Christian theology, hence my use of the term "alternative."
The DVC does not contradict any of those things. It professes, if I recall correctly, that when Christ died, Mary Magdelene was with child.
These are not mentioned either way, the whole point of the DVC is that there is a 'secret' that has been hidden, defended and sacrificed for over the past couple of thousand years. This book does not question, discuss or disparage Jesus in any way; other than to suggest that 'maybe' he was married and had children.
As was mentioned, none of those things in the story at all.
Nothing personal, but this illustrates how these things get blown out of proportion. People who have not read a book listen to others who may not have read it, who may be getting their information from someone with an agenda. Instead of finding out for themselves, they freak out, protest, etc.
I am constantly remined of Emily Litella when I hear this sort of thing...
"Oh, that's different! Never Mind!"