Greetings and peace be with you alimahdi;
Whomsoever allah guides,is truly guided,and whomsoever allah leaves to stray,non can guide him.
I agree with you, and at the same time I am troubled by this because we have the same meaning within Christianity.
Beyond a doubt we are all created by the same God, yet this same God allows us to believe these same messages through different faiths.
Why should this be?
In the spirit of searching for a greatest meaning of one God,