Greetings Sardar.
Disbelievers are the majority of the human race. They could be Muslims, Christians, Jews...Any religion, Atheists..etc..
Everybody must be wary of not "dying" a disbeliever! Everyday, we have to try and do better than the day before and continuously strive to earn our salvation, we must never take our devotion and deen for granted.
The Majority of People Do Not Believe.
12:103
Most people, no matter what you do, will not believe.
وَما أَكثَرُ النّاسِ وَلَو حَرَصتَ بِمُؤمِنينَ
12:104
You are not asking them for any money; you simply deliver this reminder for all the people.
وَما تَسـَٔلُهُم عَلَيهِ مِن أَجرٍ إِن هُوَ إِلّا ذِكرٌ لِلعٰلَمينَ
12:105
So many proofs in the heavens and the earth are given to them, but they pass by them, heedlessly!
وَكَأَيِّن مِن ءايَةٍ فِى السَّمٰوٰتِ وَالأَرضِ يَمُرّونَ عَلَيها وَهُم عَنها مُعرِضونَ
And some who believe end up worse than disbelievers!!!!
12:106
The majority of those who believe in God do not do so without committing idol worship.
وَما يُؤمِنُ أَكثَرُهُم بِاللَّهِ إِلّا وَهُم مُشرِكونَ
May the Lord keep us on His true path.
GOD bless you.
Peace.