Are you saying that the first cause doesn’t really have to be a being at all; it might also be an inanimate first cause, or, if alive, not aware of its own existence?
Theism goes several steps further, of course. Not only is there a being aware of itself, but also a supremely and absolutely omnipotent, omniscient, omnipresent, and benevolent Being, Who generates His love by His creation of the whole universe (and beyond, perhaps) and, particularly, mankind, the main focus of G-d’s love. If you then add to that the belief that all the manifestation of G-d, His love, and His law occurred on this one tiny planet in the universe, and finally, factor in the belief that your own religion is mainly the one that got all of G-d’s creation, His plan, His nature, His theological truth correct, while the others, good-intentioned as they might be, got some or most of this wrong, that’s quite a lot to process and accept, isn’t it?