Correct. Let us now define "God." Upon what foundation will you build this temple?
Christians will tell you the Father is the same God of Abraham, Isaac and Jacob.
Mormons will tell you the Father was just some dude who got things right.
So, if the Father of Mormonism and Judeo-Christian are different, so is the Son.
Mormons do not believe in the Christian Christ.
Creator and ruler of the universe.