Read and reflect on verse 870 from Surah Al-An'aam: And why should I fear anything that you worship side by side with Him, seeing that you are not afraid of ascribing divinity to other powers beside God...
وَكَيْفَ أَخَافُ مَا أَشْرَكْتُمْ وَلَا تَخَافُونَ أَنَّكُمْ أَشْرَكْتُمْ بِاللَّهِ مَا لَمْ يُنَزِّلْ بِهِ عَلَيْكُمْ سُلْطَانًا ۚ فَأَيُّ الْفَرِيقَيْنِ أَحَقُّ بِالْأَمْنِ ۖ إِنْ كُنْتُمْ تَعْلَمُونَ
And why should I fear anything that you worship side by side with Him, seeing that you are not afraid of ascribing divinity to other powers beside God without His ever having bestowed upon you from on high any warrant therefor? [Tell me,] then, which of the two parties has a better right to feel secure -if you happen to know [the answer]?