TellMeTheTruth, for the sake of your name, Allah is presented in the quran as the "true god", while other gods of the region are presented as false gods (allat, uza, manat). Another thing is the pre-islamic rituals done to the false gods (or any god for that matter) like animal sacrifice carried over to the god of the quran. But also pre-islamic local beliefs like the invisible desert dwellers (the Jinn) who were not mentioned in the previous abrahamic religions. So you make of that what you will. Also correct me if I'm wrong.
Salam, dear brother!
A god is a god. You believe in one god because you believe that he/she/it is the true god. Similarily someone else bielieves in another god because he/she believes that his/her god is the true god. You will call others' god as a false god and they will call your god a false god.
Allah tells in quran that they will never follow your qibla and you will never follow their qibla. And that is due to the above-mentioned reason.
Pre-islamic Arabs worshipped a god called Allah. Do you worship the same Allah? Or some other Allah? Which Allah is a true god?
In Quran 6:154 [Saheeh International]
Then We gave Moses the Scripture, making complete [Our favor] upon the one who did good and as a "
detailed explanation of all things and as guidance and mercy " that perhaps in [the matter of] the meeting with their Lord they would believe.
Secondly, it is true that pre-islamic rituals are added up in deen.
Well, why not fully detailed book given to moses, had no mention of desert-dwelling djinns? Let's tell Allah that He forgot to mention something in His previous scriptures (استعذ باللہ).
I will appreciate your answer if you also give references from Quran in support.
Peace!