You are asking me to prove a negative. I can't do that and neither can anyone else. It's like I tell you that there are Coca-Cola factories on Venus, you say there aren't and I say prove it. This is in the realm of what you (and I) choose to believe. To me, the king of a universe which I described as being almost unimaginably vast, being concerned with each and every of earth's inhabitants seems beyond the pale, not to mention all of the possible sentient creatures that may exists elsewhere in the universe. I suspect, however, that where it really counts, you and I are in agreement when it comes to our dealings with our fellow man and the way in which that should be implemented. At least I hope so.

You must know that the Catholic Church would consider you a heretic! I, however, appreciate your view. As to all or most religions having much in common is traceable to at least Ra. Jesus, or, more precisely, the vision of Jesus as portrayed by Christianity, vs. the historical Jesus, has a great many features that have been borrowed from the Ancient Egyptians. Even the concepts of the Saints has been paralleled with Ancient Egypt. And, of course, from the Hebrew Jehovah. As for Islam, since the creation of that religion happened in relatively recent times, we know the details of it being imagined, how and why.
I consider myself and Objectivist and perhaps I can answer why Objectivists are not friends with religions. More precisely, not friends with churches - that is the institutions of religions. A great example of that was actually expressed by a rabbi (can't recall his name), when he was asked to explain the difference between spirituality and religion. Spirituality, he said, is when Pocahontas goes into the woods, sits by a stream and contemplates her surroundings, the earth, the water, the sky, the meaning of life… Religion is when her local synagogue asks for 10%.
Now, it is quite possible that an Intelligence created Life and, perhaps the Universe, or that part of it of which we are aware. Is highly unlikely that this Creation happened in six earth days, as described in the Genesis. More likely, a natural world, with its physical laws, came into existence. Thus, we are all subject to those laws, which may have been created by God. What I find curious is that people pray to the God in order to grant them their wishes (even if most noble), which would necessitate the breaking of those natural physical laws created by that same God. And only in order to satisfy the wish of that person. Amazing!