Did the universe create itself?
Creation= causation. Creation only exists so long as there is spa ce and matter. These things came into being with the big bang. Therefore, time- and causation- also came into being when the big bang began. there is no 'before' the big bang and a creator is impossible because creation is impossible
Does it even really exist?
I believe it was Einstein who said something to effect that 'Reality is merely an illusion, albeit a very persistent one'
Yet he was no competent to create a science that could demonstrate tat here is there so that none would perish, but all would learn of him and have everlasting life?
So much for benevolent and omnipotent
Some of them do rely only on prayer to heal their sick kids and then they get arrested for negligence when the kids die. Hey, if god is in control of everything, why did the kids get sick in the first place? It seems strange to pray to a god who allowed the sickness to occur at all.