Oh yes it is worthy of dispute. It is totally made up from whole cloth with threads from prior pagan mythology. Kwanzaa has as much legitimacy as Christmas.
Here is just one of the ancient historians who acknowledged the life of Christ.
Cornelius Tacitus - He was a Roman senator in the late 1st and early 2nd centuries who wrote a 16 volume series on Roman emporers. The following was quoted from his work Annals, 15:44, by Lee Strobel in The Case for Christ:
"Christus [Christ], from whom the name had its origin, suffered the extreme penalty [crucifixion] during the reign of Tiberius at the hand of one of our procurators, Pontius Pilatus, and a most mischievous superstition, thus checked for the moment, again broke out not only in Judaea, the first source of the evil, but even in Rome ..."
Tacitus also wrote that during Nero's reign, the emporer scapegoated "a class hated for their abominations, called Christian by the populace."
Other ancient historians and philosphers who also mention the name of Christus/Christ include Pliny the Younger, Flavius Josephus, Caius Suetonius Tranquillus, Celsus, Lucian of Samosata, and Porphyry of Tyre.
Run a Google search and you will come up with a number of quotations from the above mentioned men. To my knowledge, none of those mentioned were Christian. Some of them even wrote scathing attacks against those calling themselves Christians.
I strongly believe evidence shows Jesus of Nazareth did exist on this earth.
The very concept of rights is founded in religion.
Since the enlightened person is freed from any superstitions about some "God," they are free from having to worry about "rights." Only raw power counts and humans are just meat puppets for the powerful.
Look at this puppet on a string...
http://pandachute.com/videos/leaked_saddam_being_hung_video
Are you saying it never happened????