You and I agree that the Abrahamic religions are untrue. I have written many different articles about why.

Like you, I am a materialist and a determinist. I don't believe in the supernatural because there's never been any experimental results supporting the existence of such a thing. I believe in matter, energy, waves, space, time, etc. The stuff physics talks about. No spirits, no souls, no angels or demons. No free will either. I accept evolution and believe the big bang was a naturally self-causing event.

So, you and I are starting from the same premise. What I invite you to consider is that you can start from that premise and validly arrive at a conclusion other than atheism. If you're receptive to the possibility that there's an angle you haven't thought of yet, read this. If it's still unclear after that, there's also this, this, and this.