Mormonism is heretical compared to, say, Catholicism. Of course Catholicism is heretical compared to Judaism.
To sheep, other sheep are different.
But the Catholics do NOT run around claiming to be JEWS; do they. And the ONLY 'correct' Jews at that!
To sheep, other sheep are different.
To the Flock, wolves have crept in; claiming to be a sheep.
Matthew 7:15
"Beware of the false prophets, who come to you in sheep's clothing, but inwardly are ravenous wolves.