That's why neither religion can belief in the trinity or in the idea of a son of G-d.
It is more complicated with Judaism as Jews share the Old Testament with
Christians (they just refuse to accept the fulness of God's revelation
in Our Lord Jesus Christ and the New Testament), but with Muslims it is
exactly as you said, yehudi.
I always ask all those ecumenical freaks, who claim that Muslims and Catholics
believe in the same God, if Muslim God is Holy Trinity - the unity of Father,
Son, and Holy Spirit. If He isn't then obviously it isn't the same God. Thank you.
I don't mind honest Muslims and I have a lot of respect for Jews (for historic and personal
reasons) but I just can't stand all those ecumenical half-wits, claiming that we all believe
in the same God, all religions lead to salvation, blah blah blah yada yada yada.