"Not every non muslim is a Kafir.." Can you please explain yourself? Here's what the Quran and Hadith have to say.

إِنَّ الَّذِينَ كَفَرُواْ مِنْ أَهْلِ الْكِتَـبِ وَالْمُشْرِكِينَ فِى نَارِ جَهَنَّمَ خَـلِدِينَ فِيهَآ أَوْلَـئِكَ هُمْ شَرُّ الْبَرِيَّةِ

"Verily, those who disbelieve from among the People of the Scripture (Jews and Christians) and idolaters, will abide in the fire of Hell. They are the worst of creatures."

(Surah Al Bayyinah, Ayah 6)

(This is the commentary of the ayah by Ibn Kathir)

Allah informs of what will happen to the wicked disbelievers among the People of the Scripture (Jews and Christians) and the idolators who oppose the Allah's divinely revealed Books and the Prophets whom He sent. He says that they will be in the fire of Hell on the Day of Judgement and they will abide therein forever. This means that they will remain in it and they will have no way out of it and they will not cease being in it.

أَوْلَـئِكَ هُمْ شَرُّ الْبَرِيَّةِ

(They are the worst of creatures.) meaning, they are the worst creation that Allah has fashioned and created.

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It is obligatory to have belief in the Messengership of the Prophet (Muhammad pbuh). Narrated Abu Hurairah: Allah's Messenger (pbuh) said, "By Him (Allah) in Whose Hand Muhammad's soul is, there is none from amongst the Jews and Christians (of these present nations) who hears about me and then dies without believing in the Message with which I have been sent (i.e. Islamic Monotheism) but he will be from the dwellers of the (Hell) Fire."

(Sahih Muslim, the Book of Faith, vol. 1, chapter no. 240)
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"And whoever seeks a religion other than Islam it will never be accepted of him, and in the Hereafter he will be one of the losers."

(Surah Aal Imran, ayah 85)

“Better to die on one's feet than to live on one's knees.” -Dolores Ibárruri