Because no one has produced 'evidence' that cannot be explained in a none supernatural way.
And again, you kinda need to actually go through our posts and tell us which piece(s) of evidence you dispute and why you dispute it, instead of making a generalized message. Okay, I'll refer to Daniel 9:25, and point out facts that we know. I want you to go through this, and tell me which point(s) you dispute, and we'll go from there.
Point #1: We know that from carbon dating, and various sources in history, that Daniel lived and wrote during the time of Nebuchadnezzar II. Here's the wiki article on him:
https://en.wikipedia.org/wiki/Nebuchadnezzar_II . He reigned during 605 to 562 BC. This can be verified by secular history sources.
Point #2: Daniel wrote, in Daniel 9:25 in the Bible, that an Angel appeared to him and told him that there will be a call to rebuild Jerusalem (which is in ruins at this point; it was razed by the Babylonians, this information can be found from various historical sources). From that time, it shall be "69 weeks", until the Messiah comes.
Point #3: Jewish culture has weeks of days, weeks of weeks, weeks of years. The Bible does not say which was meant, however, if we take Weeks of Years, simple math (and knowledge of the Jewish Calendar), you come up with 173,880 days which is 476 years and 140 days, and there are 119 leap years in 476 years, which leaves us with 476 years and 21 days. This is all mathematical facts.
Point #4: The call to rebuild Jerusalem happened on March 14th, 445 BC. This can also be verified by Wikipedia (
https://en.wikipedia.org/wiki/Artaxerxes_I_of_Persia ) and other historical documents because Persians were meticulous record-keepers.
Point #5: If you apply Point #3 to Point #4 using simple Math, you get April 4th, 32 AD. (I explained this in Post #70 on Page 4)
Point #6: Using a calculator (
http://www.staff.science.uu.nl/~gent0113/easter/eastercalculator.htm ) to calculate the Passover on various years, and the fact that Year 32 was a Leap Year that started on Tuesday, we can conclude that Passover was on April 5th (but by Jewish Culture and how their days work, they start the Passover on the night of the 4th). Again, simple math.
Point #7: The Bible says that Jesus entered Jerusalem just before the Passover riding a donkey, which lines up exactly with the above.
Point #8: Pontius Pilate (the guy who gave the order for Jesus to be crucified) was believed to have presided over Judaea from AD26 to AD36 and the only historical record we have of that, is a dedication stone with his name on it. However, several historical writers over the years (contemporary scholars, writers, etc) have made mention of him, enough that the existence of Pilate is fairly widely believed. The range of AD26-36 is well within the AD32 that Daniel 9:25 points to.
Point #9: Even the Muslims agree that Jesus was a real person (they don't believe He was the Son of God, though) and He is mentioned by quite a few writers of the time. If He were just a fabrication of the Jews who decided to make up a new religion, then why did non-Jewish scholars refer to Him?
So, we come down to this:
Points #3, #5 and #6 are pure hard mathematical facts. These cannot be disputed.
Points #1 and #4 can be verified by secular historical sources.
Points #8 and #9 are backed up by various contemporary writers of the time.
Points #2 and #7 are what the rest of the points are working to prove right.
So I ask you... what part of this do you dispute?