A common argument that Jesus is YHWH is from John 8:58, but Jesus’ statement "Before Abraham was, I am" claims eternal existence, not YHWH’s identity.
The Greek "ego eimi" is used non-divinely elsewhere (John 6:20, "It is I"; John 9:9, blind man’s "I am he"; Acts 26:29, Paul). The present tense "I am" contrasts with Abraham’s past "was" (genesthai), emphasising Jesus’ timeless existence.
The context (John 8:53-58) focuses on Jesus’ priority over Abraham, not divine title.