In order to attempt to justify their beliefs and faith, many Christian debaters make pre-suppositional claims that are the complete opposite of logic and observed reality.

With respect, his entire point on meaning is that Atheists cannot ground *their* sense of meaning in anything and therefore any sense of meaning is illusory. His argument is entirely that meaning must be grounded in something ultimate and, unless it is, it is ultimately meaningless. That strikes me as self-evidentially true and the Atheist must show how whatever subjective meaning they insist to be meaningful is, in fact, ultimately meaningful. There may be answers to that, but it is for Atheists to offer them. One cannot simply sneer one’s way out of answering.

“Meaning” doesn’t prove God. It would take the confirmed existence of a God, to prove meaning. My sense of meaning is grounded in what I think and feel. I can prove that I exist, and have opinions – which is more than the greatest winner of Hide and Seek can do. 

Nobody was arguing that the ability to provide subjective meaning proves God exists though the argument being made was that subjective meaning is not ultimately grounded and so it is ultimately meaningless. It requires something ultimate to ground ultimate meaning otherwise it isn’t ultimate. Everybody recognizes your subjective sense of meaning is grounded in what you think and feel.

This author has no evidence for his claims, and simply insists that meaning in one’s life has to be “objective” to be worth anything.  He has put the cart firmly before the horse, but sadly, I can still see the horse’s ass.  If God cannot be shown to exist then, no matter how much he wants and needs an ‘ultimate’ ground for (his) morality, my/our ‘subjective’ one is the best there is.

Businessman/philosopher Charlie Kirk went to college and university campuses to debate with students.  When he was discussing politics, education, or finance, his thoughts were clear and hard.  When a subject like abortion or transgender led him into his Christian beliefs, an eighth-grade student could embarrass him.

Archeology has never proved the Bible wrong.
In 1000 pages, the Bible says a thousand different things – some good, some bad, many irrelevant.  With the same degree of accuracy and truth, it could be said that Archeology has never proved Harry Potter wrong.  We found this magical castle/campus, but it’s not Hogwarts.  A negative cannot be proven.

I was in a bad place, but I gave myself to Jesus, and I turned my life around, and became a successful businessman.
No He Didn’t!!  He gave himself to the belief in Jesus, and the placebo effect.  He was told that if he did X, Y would occur.  He did X, and Y occurred, but the two were not related.  He was told that he needed a crutch, but never noticed that he accomplished it with his own strength and resolve, and never actually needed the crutch.