Their final arguments solidify that the existence of God cannot be proven scientifically...
This debate is pointless in its entirety.
As a believer, we believe God exists, and created everything we see now and what we've seen in the past, including the entire universe. Believers rely entirely on faith, not scientific fact, because it can't be scientifically proven (God's existance). As Christians know and understand, we believe in God, a higher power, through faith and faith alone. We also believe that God does not to come off as being obvious in existance, as that would defeat the purpose of faith -- if his existance was unquestionable, faith in religion wouldn't exist. Christians believe that God wants us to come to him in faith, as God also gave us free will -- the will do believe in a different God or not to believe in a higher power, period. A relationship with Christ is based on your own desire to have one and through your faith only. I don't believe God will ever make his existence coincide with science to prove Himself until the day he decides (as we believe) to return to earth.
I also find it amusing that many of us enjoy creating arguments like, "Well, if God existed, why does so much suffering in the world exist?" Simple, really. In terms of one nation waging war on another, that's called free will. No need to blame God for own stupidity and short-comings as a human race. Natural disasters, diseases, etc., all exist to for a reason. If the world was perfect and pain-free, it would be overpopulated, uninteresting, and non-human like. Suffering, pain, disasters, and our own stupidity in between force us to feel emotion, change our way of living based on bad events or previous bad experiences, etc. When you really think about it, it all makes sense. Most of the world's problems are caused by
us, yet we hate to take responsibility for it. God's existence doesn't mean he has to sort out all our problems for us. God's existence doesn't mean we can abuse each our and our world and just say, "Well, since God can do anything - if he exists - we should be alright, and he'll fix what we mess up." God's existence is not a free pass for the human race to be one massive moron.