Mr. Frenchy and Mr. Dave,
You two gentlemen and several others believe that C.S. Lewis left a fourth option to choose from in his famous "Lord, Liar, or Lunatic" proposition.
You argue that he also should have included "Legend, or myth" in there to bring it to four and that he was unjustified in omitting it which makes it a fallacious proposition.
Therefore, the real question here is:
"Is there warrant in omitting the option of Legend or Myth from the proposition?"
If Mr. Lewis had warrant in omitting Legend or Myth from his proposition then no charge of a fallacious composition can be justifiably leveled against him. So there real matter at hand is the historicity of Jesus of Nazareth.
But there are two way in which these terms can be used.
1. Legend or myth can be used to refer to Jesus as never having existed as a real person. I.e., that He was completely made up by the imaginations of those who claimed to follow Him.
2. That He really was a Jewish man who lived in Palestine during the rein of Tiberius Caesar, but most of what He is recorded as having done, i.e. miracles, etc. are simply made up by those who followed Him.
With regards to one, it is a non-issue. No credible historian or scholar denies the existence of Jesus of Nazareth as an actual historical person.
I will let my following resources speak for themselves. Courtesy of Wikipedia.
Virtually all modern scholars of antiquity agree that Jesus existed,[1][2][3][4] and although there is little agreement on the historicity of gospel narratives and their theological assertions of his divinity,[5][6][7][8] biblical scholars and
classical historians regard theories of his non-existence as effectively refuted.
[9][10][11] Most scholars agree that Jesus was a
Galilean Jew who was born between 7 and 2 BC and died 3036 AD.
[12][13][14] Most scholars hold that Jesus lived in Galilee and Judea, did not preach or study elsewhere
[15][16][17] and that he spoke
Aramaic and may have also spoken Hebrew and possibly Greek.
[18][19][20] Although scholars differ on the reconstruction of the specific episodes of the life of Jesus, the two events whose historicity is subject to "almost universal assent" are that
he was baptized by
John the Baptist and shortly afterwards
was crucified by the order of the
Roman Prefect Pontius Pilate.
[21][22][23][24]
Resources in the following post.