What was the matter of wonder for the polytheists of Makkah?

They took the worship of idols from neighboring nations. Hence, they met the call to Tawheed (monotheism) with the greatest denial and the most intense amazement. Allah The Almighty Says (what means): {And they wonder that there has come to them a warner from among themselves. And the disbelievers say, “This is a magician and a liar. Has he made the gods [only] one God? Indeed, this is a curious thing.” And the eminent among them went forth, [saying], “Continue, and be patient over [the defense of] your gods. Indeed, this is a thing intended. We have not heard of this in the latest religion. This is not but a fabrication.”} [Quran 38: 4-7]

Explanation:

I hope this helps you in any shape or form.