We know that the universe has a beginning and an end. So it is unlikely that the universe just always existed. I think that it's the most logical conclusion that there is a timeless and infinite source of energy outside our finite universe that created it. In other words, God.
Now this tells us nothing about God. Does he have a personification, or is He just mindless energy? What is God's nature? But it all boils down to: Does God love us? If He does then He would let us know. The Bible tells us that God loved us so much He sent His only Son to die for our sins. Sounds like God's love letter to me.
The alternative is to believe in a God without love, and a world without hope of salvation. I choose to believe in hope and love. Christ is the answer.
That's nice and all, but like CJ said your starting presumption may not be true. I don't think the answer to this is so easy. With so many theories of God I tend to think it doesn't matter one way or another, but I keep an open mind because I can't be sure. You would think that if God left an answer for us it would be a lot more straightforward.
So far you can't prove that God is good or evil. You're assuming that everything in the Bible is true. That God created us, etc.
You might not understand how this argument works. Here's the idea. First assume that God exists. Then you ask yourself: Why does He allow suffering? What evidence is there that He cares about us? There are two possibilities here: either He doesn't care, or He's an evil monster. This is a problem solver for theists.
Let me make something clear. I don't believe that God is an evil monster. I don't even think that He is an evil entity. I believe that God is the creator of this universe, but doesn't care about us in the ways that we would expect a loving father to care for his children. For all intents and purposes, we are God's creations. We evolved from His handiwork. He made us, and He gave us the ability to survive as a species. But for whatever reason, He doesn't seem to care about us, or to be interested in our suffering. He's the type of parent that would send you on a mission to Mars, and then just sit back and enjoy the show as you die horribly in a fiery explosion.
This, of course, begs the question: Are we alone in this universe? Is there some other species out there that God is equally disinterested in? Maybe there's a civilization of alien robots that has existed for millions of years. Maybe they've mastered the secrets of space travel, and have sent probes all over the universe, yet have never discovered a single human civilization, or anything else worth noting. The thought that there are hundreds of thousands, or even millions, of other planets with intelligent species, and that God is totally oblivious to all of this is pretty depressing.
The basis for your argument isn't bad. Maybe we should consider the possibility that the universe is in an endless cycle of death and rebirth? The energy just changes state not goes away after all. But your presumption isn't illogical. I'll give you that.
I propose that God is evil and doesn't love us. You can't argue against God's evil anymore than anyone could argue against the Christian concept of God's goodness. You only argue that Christianity isn't illogical not that it's right.
So to settle this we need to look at the Bible and see if Christianity can be dismissed as false. If so then my black pilled proposal that God is evil or uncaring makes more sense than Christianity.