Pakistan doesn't need Israel.
Quran Says - Al-Ma'idah - 5:51
يَا أَيُّهَا الَّذِينَ آمَنُواْ لاَ تَتَّخِذُواْ الْيَهُودَ وَالنَّصَارَى أَوْلِيَاء بَعْضُهُمْ أَوْلِيَاء بَعْضٍ وَمَن يَتَوَلَّهُم مِّنكُمْ فَإِنَّهُ مِنْهُمْ إِنَّ اللّهَ لاَ يَهْدِي الْقَوْمَ الظَّالِمِين
O YOU who have attained to faith! Do not take the Jews and the Christians for your allies: they are but allies of one another [72] and whoever of you allies himself with them becomes, verily, one of them; behold, God does not guide such evildoers. [73]
Reference:
Surat Al-Ma'idah [5:51] - The Noble Qur'an - ?????? ??????
Anybody who supports Pakistan-Israel relationship/cooperation must bring a Sura or saying of Allah to support his claim or learn from Quran which has given its verdict already.
There is no harm in trading with them but everything must be done under the criteria defined by Quran.