The "God created everything" argument is always gonna be valid no matter how much you know about the universe.
Why? Because the thing is, you can't create something out of nothing.
Scientist believe dark matter created the universe.
If dark matter created the universe, who/what created dark matter?
There is no such thing as "it's always been there" because you can't create something out of nothing, someone has to design it and give it a purpose.
You can't just go from having a blank piece of paper to magically having a drawing.
It's a never ending question.
well maybe the human brain finds that hard to comprehend, doesn't mean that its not possible.
if god was the one who created existence, that would mean that he/she/it also would have either appeared from nothing or been created.
im pretty sure Einstein said anything was possible. (don't quote me on it)