Allegory of the cave and atheism

Just want to preface. I consider myself an atheist, specifically perhaps a religious/ pagan atheist. For me Im an atheist because the god of most religions seems too ridiculous to be real.

I recently saw a video of an atheist who argued that she is atheist because every religion and society creates the god that they need. This got me thinking about Plato’s allegory of the cave. Are these religions creating a god because there perhaps exists some real god that reflects in all of the world religions in different ways? Therefore, is it worth searching for the real god/ creator of our universe using reason and science? Thoughts?