I said. Reasons not questions
Probably the fact that JW's do not believe that Jesus is God. They reduce Jesus to a created being, when in fact, the Word, who Jesus was before becoming man so he could die, had no beginning nor end. (firstborn of all creation, in fact means, ruler over all creation, just as King David was called "firstborn" though he was the youngest of 7 children.) The Word was with God, and the Word was God, not "a god" as JW's twist.
Isaiah 9:6
6 For unto us a
Child is born,
Unto us a Son is given;
And the government will be upon His shoulder.
And His name will be called
Wonderful Counselor, Mighty God,
Everlasting Father, Prince of Peace.
Those all are names of God, who Christ is. They are plural, but one - the mystery of the Trinity.
Spirit, Father, Son. (Trinity is not a bad word as JW's believe, just above our pay grade to understand precisely.)
Genesis 1:26 "Then God said, “
Let Us make man in Our image, according to Our likeness; let them have dominion over the fish of the sea, over the birds of the air, and over the cattle, over all the earth and over every creeping thing that creeps on the earth.”
The biggest reason to leave them is this:
1 John 2:22 Who is a liar but he who denies that
Jesus is the Christ? He is antichrist who denies the Father and the Son. 23 Whoever denies the Son does not have the Father either; he who acknowledges the Son has the Father also.
The
Christ is what is described in Isaiah 9:6, so if you can't believe that Jesus is Mighty God, you don't have the Father either.