Just so we're all on the same page here, obviously from the Catholic point of view we don't belong to a "denomination erected by flesh beings" but to the Society, or Body, or Church, established and headed by Christ. It has been my experience after 30+ years of interaction with Catholic inlaws what is claimed and what is practiced. I have been told the program of who is who and what is what. But the program has some big glitches because of what is thrown in the trash basket, completely ignored as if 'flesh beings' have that authority. The 'church' was NEVER intended to be the object of worship, or any flesh beings including Mary.
Do you mean "human" in the generally accepted understanding of the word when you write "flesh being" or is there some subtle difference intended? Beyond that, it seems inaccurate to call a human a "flesh being" because we are spiritual as well as flesh. I know this to be true by way of experience because I can will my body to do things that do not satisfy my glands and organs, more telling is that I can resist the impulses of my glands and organs. If I was a "flesh being" I could not do so.
My dog, for instance, is a flesh being.