If Baha'u'llahs writings are objective evidence of a God, why is this poem not also objective evidence for Santa?
Because Santa was not a Messenger of God.
But the people you are debating with do not hold that belief, and they are telling you why the God you propose exists has the same ontological status as anything else which it is claimed exists, but cannot be demonstrated.
It has been demonstrated, just not to your satisfaction.
I'm confused about where you see a god in all of this. I see a man and his words. Do the words reveal this God to you? If so, how?
I already
believed that Baha'u'llah was a Messenger of God from extensive research before I read His words, but after I read His words that further confirmed what I believed and then I
knew. That happened in June 2014.
Is it because you consider them wise beyond what a human being could write without the help of a deity? If not, why are you calling it objective evidence for God?
The Writings of Baha'u'llah are not the only evidence. Below is what He wrote about evidence and note that the Writings were
the third piece of evidence we are enjoined to look at, if the first two pieces of evidence were insufficient.
“Say: The first and foremost testimony establishing His truth is His own Self. Next to this testimony is His Revelation. For whoso faileth to recognize either the one or the other He hath established the words He hath revealed as proof of His reality and truth. This is, verily, an evidence of His tender mercy unto men. He hath endowed every soul with the capacity to recognize the signs of God. How could He, otherwise, have fulfilled His testimony unto men, if ye be of them that ponder His Cause in their hearts. He will never deal unjustly with any one, neither will He task a soul beyond its power. He, verily, is the Compassionate, the All-Merciful.” Gleanings From the Writings of Bahá’u’lláh, pp. 105-106
How do you propose to prove that a man was sent by a God that might not exist just by looking at the man or his words?
I don't propose to do that as that would be very foolish. I looked at ALL the evidence, not just His Writings.
Below is a list of the primary categories of evidence.
His own Self is who He was, His character (His qualities).
That can be determined by reading about Him in books such as the following:
The Revelation of Bahá'u'lláh, Volumes 1-4
His Revelation is what He accomplished (His Mission on earth/ the history of His Cause).
That can be determined by reading about His mission in books such as the following:
God Passes By (1844-1944)
The Revelation of Bahá'u'lláh, Volumes 1-4, which cover the 40 years of His Mission, from 1853-1892.
The words He hath revealed is what He wrote can be found in books that are posted online:
The Works of Bahá'u'lláh
Baha'u'llah fulfilled all the Bible prophecies which is like icing on the cake. That proves to me he was the Messiah and the return of Christ. Those prophecies and how they were fulfilled are delineated in the following book:
William Sears, Thief in the Night
Baha'u'llah predicted many events that later came to pass is more icing on the cake. Some of these predictions and how they came to pass are listed and delineated in this book:
The Challenge of Baha'u'llah