There is a well-known rabbi who has a standing joke that relates how God invented Mormonism so Christians would know how it feels to be Jewish.
It is a joke, but he couldn't be more spot on! Let them taste their own medicine! It is the exact equivalent: contorted interpretation, new theology and new "scripture."
The OT addresses the Gentiles through Noah. The non-Jewish people are simply to live their lives according to the Noahide Laws. That's where their involvement with the God of Israel ends. They have no other role or obligation as far as he is concerned.