Richard, rather than seeing each religion as a completely distinct worldview, perhaps we should see them as grouped into 3 types of worldviews. I highly recommend reading Michael Horton's Christian Faith book and see how he divides the worldviews. Dr. Horton applies Paul Tillich's paradigms of "overcoming estrangement" and "meeting a stranger" to worldviews to demonstrate all those other philosophies and worldviews are really just different versions of one view that is repeated with only slight changes. To Tillich's label's, Dr. Horton also adds a third type: "the stranger we never meet". So there are essentially these 3 worldviews and all the religions are versions of the 3 types.
Notice: (Below are quotes/summaries from Dr. Horton's Christian Faith copied/pasted)
Overcoming Estrangement (man's attempts to rejoin the one reality/god/essence, climbing the ladder to god): Is the story that the ultimate source of reality is not outside of us but inside. God does not enter into the times and spaces that he has created; rather, all of reality emanates from this divine principle of unity like rays from the sun. Think Plato's philosophy: the lower physical world of the senses isn't real, but the upper world of essences/forms philosophy is real. Think a light bulb, where the further from the bulb you get, the light gets dimmer. So Plato taught reality gets dimmer as it descends into the physical. All of reality is ultimately one. There is no distinction, finally, between God and the world. The world is a dimmer version of god.
Plato, Pantheism, Panentheism are repeated in Buddhism, Hinduism, Mormonism, Gnosticism, Dualism, Mysticism (Meister Eckhart), Islamic Sufism, Jewish Kabbalism, Benedict Spinoza, German Romanticism, American Transcendentalism, New Age, Neopagan Spirituality, Process Theology, "Christian" Word Faith cult (tv prosperity preachers) all seek through human works/attempts to rejoin or find the god within.
"Meeting a Stranger": Nietzsche advocated an “inverted Platonism,” where the upper world is illusion and the lower world is real. Amid important differences, there are some surprising similarities between pantheism and atheism. In fact, they are two sides of the same coin. Both embrace the view that being is univocal: in other words, that there is only one kind of reality or existence. pantheism assumes that the upper world is real and this world is mere appearance, while atheism assumes that this world is real and the upper world is nonexistent. In their drive toward immanence, both paradigms locate the divine within the self (reducing theology to anthropology or psychology). Neither scheme allows for the personal intervention of God in nature and history.
Atheism, Deism, Karl Marx, Friedrich Nietzsche, Sigmund Freud
"The Stranger We Never Meet" (God descends to humanity and finds us, we do not find Him): This model assumes that God and the world are distinct—Creator and creation. God is indeed a stranger, but one who has condescended to meet us. God is qualitatively distinct from creation. God is not only qualitatively different from us but morally opposed to us. We are estranged from God by sin. Salvation is achieved not by human ascent from the realm of shadows into the unity of divine being but by God’s descent in our flesh. the world has never been divine. The triune God created us to share in his drama, not in his essence. the history of the covenantal relationship of God and humanity rather than the metaphysics of being and becoming is the interest of this model.
Where the pagan worldviews locate evil somewhere in the essence of created, material, plural, finite, and embodied existence as such, the biblical worldview identifies evil with a historical violation of God’s loving will and command by free creatures who demanded an autonomous existence that did not belong to them.