Why is Moshe said to be the founder of "Judaism"? The Laws were that given of the Father, and the faith also, which was before even Moshe's time. And I'm certain it wasn't called "Judaism".
It's like saying the Son was the founder of "Christianity", which I've heard before, though it isn't so. He showed us the Way, died for our sins, taught us to believe and have faith, was resurrected back to life after journeying into the belly of the earth, brought others to life, and showed us how the trust the Father fully, and is certainly our foundation, but isn't the founder of a title to that gather's us all. No, He's simply the Shepard who gathers us all.