Existence of God is a rather moot point in my opinion. If God is anything lesser than the collective overruling consciousness of the universe (or multiverse depending on point of view), then it's just a conscious being residing in the universe, in which case I fail to see any point in believing or not believing in it - either this creature we call "God" exists or not, either way it would still be equal in category (if not in power levels) to us; a sentient being existing inside the universe. Or multiverse. Servitude to such creature is something I am not willing to enter whether or not I would believe in the existence of such being, I kinda dislike cults of personality...
On the other hand, if the Universe really does have a collective consciousness... then everything is a part of it and I doubt that my consciousness ending (death) has much of an effect in the whole, and servitude of a personal deity becomes even more of a moot point, since it would then be better to show one's gratitude to universe by living as good a life as possible, which makes sense even if universe is a "blind god" without a single, overruling consciousness.
Or in a nutshell... which is bigger, universe (by definition "all that exists") or God?
Personally I think it's very unlikely that the universe would have an "overconsciousness", but due to my view of the world I can not deny the possibility of such a thing, after all the functionality of this consciousness would very likely be based on some currently unknown natural phenomenon. But on the other hand I do not think believing in these things changes things in the slightest, no matter how strange theological and teleological assumptions have been made during centuries.
Quoting another famous statement from Epicurus:
Death is nothing to us, since when we are, death has not come, and when death has come, we are not.
Or in other words, the existence of my consciousness will continue as long as it will, and afterwards my death will not matter to me.
What comes to the problem of evil in context of the existence of God, well, as you might see that question becomes as moot as the question about God's existence, so I'll just pass on that one for now.