﴿ إِن يَثْقَفُوكُمْ يَكُونُوا۟ لَكُمْ أَعْدَآءًۭ وَيَبْسُطُوٓا۟ إِلَيْكُمْ أَيْدِيَهُمْ وَأَلْسِنَتَهُم بِٱلسُّوٓءِ وَوَدُّوا۟ لَوْ تَكْفُرُونَ ﴾

“If they could but overcome you, they would [still] remain your foes, and would stretch forth their hands and tongues against you with evil intent: for they desire that you [too] should deny the truth.”

During the state of war, when the position is that Islam and non-Islam have become polarised on separate fronts, it is the responsibility of the people of Islam to sever their relations with the non-Islamic front, even if their relatives and dear ones are part of it. Being a believer in Truth and at the same time having close relations with the enemies with whom one is at war is totally wrong.