So how does your argument apply to non-Abrahamic faiths?
I'm not fully aware of the type of discussion you are having with
@Ammara Chaudhry but I would like to give my response to your statements.
"And We certainly sent into every nation a messenger, [saying], "Worship Allah and avoid Taghut." And among them were those whom Allah guided, and among them were those upon whom error was [deservedly] decreed. So proceed through the earth and observe how was the end of the deniers.” – Quran 16:36
According to Islam every civilization, nation and a group of people were sent messengers, advocating them to come to the true path, such messages could have been twisted later by men in order to acquire power or other personal gains and interest.
One must not judge or reach conclusions of the concept of God espoused by a religion by merely the practice of it's followers, it is quite common for the followers of many religions to be ignorant of the concept of God found in their scriptures, it is therefore better to analyse any religion by referring to it's holy scriptures.
Hinduism:
"He is One only without a second." - Chandogya Upanishad 6:2:1
"Of Him there are neither parents nor lord." - Svetasvatara Upanishad 6:9
"There is no likeness of Him." - Svetasvatara Upanishad 4:19
"His form is not to be seen; no one sees Him with the eye." - Svetasvatara Upanishad 4:20
"There is no image of Him." - Yajurveda 32:3
"He is bodyless and pure." - Yajurveda 40:8
"They enter darkness, those who worship the natural elements" (Air, Water, Fire, etc.). "They sink
deeper in darkness, those who worship sambhuti." - Yajurveda 40:9
"There is no image of Him." - Yajurveda 32:3
"O friends, do not worship anybody but Him, the Divine One. Praise Him alone." - Rigveda 8:1:1
Judaism:
"Hear, O Israel: The LORD our God, the LORD is one." - Bible 6:4
"I am the LORD, and there is no other; apart from me there is no God . . ." Bible 45:5
"Remember the former things of old: for I am God, and there is none else; I am God, and there is none like me." - Bible 46:9
"You shall have no other gods before me. You shall not make for yourself an image in the form of anything in heaven above or on the earth beneath or in the waters below. You shall not bow down to them or worship them; for I, the LORD your God, am a jealous God . . ." Bible 20:3-5
Christianity:
"My Father is greater than I." John 14:28
"My Father is greater than all." John 10:29
" . . . it is by the Spirit of God that I cast out demons . . " - Mathew 12:28
"I drive out demons by the finger of God" - Mathew 11:20
"By myself I can do nothing; I judge only as I hear, and my judgment is just, for I seek not to please myself but Him who sent me." - John 5:30
"Anyone who does not love me will not obey my teaching. These words you hear are not my own; they belong to the Father who sent me." - John 14:24
Islam:
Say, "He is Allah , [who is] One,
Allah , the Eternal Refuge.
He neither begets nor is born,
Nor is there to Him any equivalent." - Quran 112:1-4
Messengers were sent to every Civilization on earth and there are remarkable similarities of the concept of God present in world's major and ancient religious scriptures, which the followers themselves contradict, such similarities of the concept of God can also be found in ancient dead religion the likes of Zoroastrianism etc speaking about the oneness of the Creator, so as to speaking of which religions being divine well according to Islam stating that messengers were to sent to every nation, every world's ancient and major religion could very well have been divine.
Say, "O People of the Scripture, come to a word that is equitable between us and you - that we will not worship except Allah and not associate anything with Him and not take one another as lords instead of Allah." But if they turn away, then say, "Bear witness that we are Muslims [submitting to Him]." - Quran 3:64