If man is a chemical accident that happens by physical laws, why do you trust your observations? They could just be random chemical reactions. Why do you trust your logic? Isn't it just random reactions? Why do you even trust the laws of logic. If everything is true simply by way of physical processes, why would you believe in logic which is of the mind?
Why does every culture believe murder is wrong if evolution is just survival of the fittest? Wouldn't killing off the weak be good if Darwinian Evolution is true?
In response to your last point about a universe popping into existence, if you know physics well, that is impossible. Everything has a cause. God is the first cause. He works because He is outside time and space and isn't limited by the physical law.
There are so many things in life that are irreducibly complex, that it is incomprehensible that these things could "evolve" even once. Many of them are said to have "evolved" independently multiple times. One irreducibly complex system that makes zero logical sense that it could evolve on its own is sexual reproduction. Unrelated organisms can't reproduce together. You would have to have a male something (particular species/genera/family) evolve a whole male reproductive system in the same location and at the same time as a female of the same species/genera/family evolve a whole female reproductive system through random mutations. If you have studied the complexity of those systems, there is zero chance of that happening. It is illogical.