»Did Mary Magdalene and Jesus have a baby?«

If Jesus had a child it would have been worshipped just as he was

2) The taboo of sexual practices mostly comes from the writings of Paul, not Jesus.

Even today the Dalai Lamas reincarnations are seen as divine. Obviously those aren't literally his children

In the egyptian religion every pharoah would be considered to be a God. Since the pharoah's (like most kings) passed their position to their children this is clear case of their children being worshipped.

The same goes for the Caesars in Rome

You asked questions and I answered them. My answer to (2) was merely to point out that anti-sex teachings would not have changed whether Jesus' child was worshipped!

The Caesars were worshipped as Gods

Hmm, so Jesus would have had a child and yel Paul would have suggested to stay away from women?

Abraham was the founder of Jesus' religion

If Jesus had a child it would have been worshipped just as he was

I can tell...that Echelon is one of the victims that have surrendered to the religious ideas presented in a novel. Since when do we start doing that...?

So Jesus couldn't have had a child! If he had, Paul would not have come up with the anti-sex doctrine that he did!

Because of the novel's claim to contain elements of historical truth within its fictional framework, many have viewed The Da Vinci Code as a genuine exposé of orthodox Christianity's past. As a result, the book has attracted a generally negative response from the Christian community, as well as from historians dismayed by the way Dan Brown has in their view distorted—and in some cases fabricated—history. Criticisms cover:

the claim that prior to AD 325, Christ was considered no more than a "mortal prophet" by his followers, and that it was only as a consequence of Emperor Constantine's politicking and a close vote at the First Council of Nicaea that Christianity came to view him as divine: this has been debunked with extensive reference to the Bible and Church Fathers by various authors. (Example (http://www.envoymagazine.com/PlanetEnvoy/Review-DaVinci-part2-Full.htm#Full).) At the Council, the central question was if Christ and God were one, or whether instead Christ was a created being, inferior to the Father (see Arianism).
the claim that Mary Magdalene was of the tribe of Benjamin: this is unsupported by any historical evidence. The fact that Magdala was located in northern Israel, whereas the tribe of Benjamin resided in the south, weighs against it;
the idea that the purported marriage of Jesus and Mary Magdalene would create a "potent political union": According to the Gospels, Jesus clearly stated that his kingdom "is not of this world"; if, on the other hand, Jesus was merely a "mortal prophet" seeking to establish only a political kingdom, he failed;
the assertion that "the sacred feminine" has been suppressed by Christianity: In Roman Catholicism, for example, Mary (of Nazareth), the mother of Jesus, is specially venerated as the "Mother of God," the "Queen of Heaven," the spiritual mother of all mankind, and is believed to be free of sin; (It is hypothesized that Mary's Virginal nature does not accord with Brown's ideals);
the allegation that five million women were burned by the Church as witches: the most reliable estimates—including those not executed at the Church's recommendation, not killed by burning, and not female—range from 30,000 to 50,000;
the assertion that the original Olympics were held in honour of Aphrodite: they were celebrated for Zeus Olympias;
the theory that Gothic architecture was designed by the Templars to record the secret of the sacred feminine: historians note that Templars were not involved with cathedrals of the time, which were generally commissioned by European bishops;
the depiction of the Templars as builders, guild-founders and secret-bearers: Templar historians point to abundant evidence that Templars did not themselves engage in building projects or found guilds for masons, and that they were largely illiterate men unlikely to know "sacred geometry" purportedly handed down from the pyramids' builders;
the portrayal of the Priory of Sion as an ancient organisation: while the Priory is a genuine organisation claiming to have been the Templars' driving force, most historians suspect it originated in the aftermath of World War II on the grounds that it registered with the French government in 1956 and only became widely-known in 1962 (see Pierre Plantard);
the suggestion that all churches used by the Templars were built round, and that roundness was considered an insult by the Church: some churches used by the Templars were not round, and those that were round were so in tribute to the Church of the Holy Sepulchre;
the contention that the Mona Lisa was painted as a self-portrait: art historians are almost unanimous in holding the painting to be of a real woman, Madonna Lisa, wife of Francesco di Bartolomeo del Giocondo.

Many have held the novel's historical defects to be so serious and numerous as to warrant separate works debunking it; several books such as Carl Olson and Sandra Miesel's The Da Vinci Hoax have been written in an attempt to expose what critics perceive as Brown's many errors.