Question: Will all Jews and Christians go to hell? Yes, all Christians will go to hell. "whose seeketh as religion other than the Surrender (to Allah) it will not be accepted from him, and he will be a loser in the Hereafter." (3:85)."They surely disbelieve who say: Lo! Allah is the Messiah, son of Mary. ... Lo! Whose ascribeth partners unto Allah, for him Allah hath forbidden paradise. His abode is the Fire. For evil-doers there will be no helpers." (5:72).No, some will not. "Those who are Jews, and Christians, and Sabaeans - whoever believeth in Allah and the Last Day and doeth right - surely their reward is with their Lord, and there shall no fear come upon them neither shall they grieve. (2:62)."Lo! those who believe, and those who are Jews, and Sabaeans, and Christians - Whosoever believeth in Allah and the Last Day and doeth right - there shall no fear come upon them neither shall they grieve." (5:69).
Answer: First we have all to be sure that God is Just. He who does not think that he did a blaspheme. If you go through different verses you find the right answer. If you read the verse: 5:72 "They do blaspheme who say: "(Allah) is Christ the son of Mary." But said Christ: "O Children of Israel! worship Allah, my Lord and your Lord." Whoever joins other gods with Allah,- Allah will forbid him the garden, and the Fire will be his abode. There will for the wrong-doers be no one to help."
لَقَدْ كَفَرَ الَّذِينَ قَالُواْ إِنَّ اللّهَ هُوَ الْمَسِيحُ ابْنُ مَرْيَمَ وَقَالَ الْمَسِيحُ يَا بَنِي إِسْرَائِيلَ اعْبُدُواْ اللّهَ رَبِّي وَرَبَّكُمْ إِنَّهُ مَن يُشْرِكْ بِاللّهِ فَقَدْ حَرَّمَ اللّهُ عَلَيهِ الْجَنَّةَ وَمَأْوَاهُ النَّارُ وَمَا لِلظَّالِمِينَ مِنْ أَنصَارٍ
You find it is clear that it is a blaspheme to take Jesus as a God and one can go to hell for that. Given our recognition of God as just we should assume that this for people who are exposed to Quran and knew from their heart it is right. For Christians who are not they have the intercession of Jesus provided they were faithful in trying to find the truth. 5:116 And behold! Allah will say: "O Jesus the son of Mary! Didst thou say unto men, worship me and my mother as gods in derogation of Allah.?" He will say: "Glory to Thee! never could I say what I had no right (to say). Had I said such a thing, thou wouldst indeed have known it. Thou knowest what is in my heart, Thou I know not what is in Thine. For Thou knowest in full all that is hidden. وَإِذْ قَالَ اللّهُ يَا عِيسَى ابْنَ مَرْيَمَ أَأَنتَ قُلتَ لِلنَّاسِ اتَّخِذُونِي وَأُمِّيَ إِلَـهَيْنِ مِن دُونِ اللّهِ قَالَ سُبْحَانَكَ مَا يَكُونُ لِي أَنْ أَقُولَ مَا لَيْسَ لِي بِحَقٍّ إِن كُنتُ قُلْتُهُ فَقَدْ عَلِمْتَهُ تَعْلَمُ مَا فِي نَفْسِي وَلاَ أَعْلَمُ مَا فِي نَفْسِكَ إِنَّكَ أَنتَ عَلاَّمُ الْغُيُوبِ
5:117 "Never said I to them aught except what Thou didst command me to say, to wit, 'worship Allah, my Lord and your Lord'; and I was a witness over them whilst I dwelt amongst them; when Thou didst take me up Thou wast the Watcher over them, and Thou art a witness to all things. مَا قُلْتُ لَهُمْ إِلاَّ مَا أَمَرْتَنِي بِهِ أَنِ اعْبُدُواْ اللّهَ رَبِّي وَرَبَّكُمْ وَكُنتُ عَلَيْهِمْ شَهِيدًا مَّا دُمْتُ فِيهِمْ فَلَمَّا تَوَفَّيْتَنِي كُنتَ أَنتَ الرَّقِيبَ عَلَيْهِمْ وَأَنتَ عَلَى كُلِّ شَيْءٍ شَهِيدٌ
5:118 "If Thou dost punish them, they are Thy servant: If Thou dost forgive them, Thou art the Exalted in power, the Wise."
إِن تُعَذِّبْهُمْ فَإِنَّهُمْ عِبَادُكَ وَإِن تَغْفِرْ لَهُمْ فَإِنَّكَ أَنتَ الْعَزِيزُ الْحَكِيمُ
5:119 Allah will say: "This is a day on which the truthful will profit from their truth: theirs are gardens, with rivers flowing beneath,- their eternal Home: Allah well-pleased with them, and they with Allah. That is the great salvation, (the fulfillment of all desires).
قَالَ اللّهُ هَذَا يَوْمُ يَنفَعُ الصَّادِقِينَ صِدْقُهُمْ لَهُمْ جَنَّاتٌ تَجْرِي مِن تَحْتِهَا الأَنْهَارُ خَالِدِينَ فِيهَا أَبَدًا رَّضِيَ اللّهُ عَنْهُمْ وَرَضُواْ عَنْهُ ذَلِكَ الْفَوْزُ الْعَظِيمُ
God justice also expands to other people from different religions as in this verse:
5:69 Those who believe (in the Qur'an), those who follow the Jewish (scriptures), and the Sabians and the Christians,- any who believe in Allah and the Last Day, and work righteousness,- on them shall be no fear, nor shall they grieve. إِنَّ الَّذِينَ آمَنُواْ وَالَّذِينَ هَادُواْ وَالصَّابِؤُونَ وَالنَّصَارَى مَنْ آمَنَ بِاللّهِ وَالْيَوْمِ الآخِرِ وعَمِلَ صَالِحًا فَلاَ خَوْفٌ عَلَيْهِمْ وَلاَ هُمْ يَحْزَنُونَ
To summarize it: there is no compulsion in religion: Islam (submission) is God religion since the creation and each message that was received and practiced right is Islam. However, the Islam of prophet Muhammad (PBUH) is God's last religion. It is the last message for all people. Muslims have to do their homework to conduct this message. God is just and he knows the hearts and souls of all of us. He is the one who will judge us in the day of judgment about the sincerity of all of us. 5:119 Allah will say: "This is a day on which the truthful will profit from their truth: .."