Hello and thank you for the reply.
Please excuse me i may have been rather general and too blunt.
Not all muslims are uneducated or ignorant. There are ones who understand their religion very well, some know bible scripture better than some christians.
To sum up what paul has said, those who have never been offered Jesus or are completely ignorant to Jesus are judged by their own conscience - possible explanation - what morality they know.
Those who know of Jesus and reject Him are at peril. Accepting Christ as a prophet does not go far enough and any devout muslim has read the quran.
The quran denies the crucifixion
they did not slay him, neither crucified him, only a likeness of that was shown to them" (Qur'an 4:156).
The quran rejects the deity of Christ and the Trinity.
O People of the Book! Commit no excesses in your religion: Nor say of Allah aught but the truth. Christ Jesus the son of Mary was (no more than) an apostle of Allah, and His Word, which He bestowed on Mary, and a spirit proceeding from Him: so believe in Allah and His apostles. Say not "Trinity" : desist: it will be better for you: for Allah is one Allah. Glory be to Him: (far exalted is He) above having a son. To Him belong all things in the heavens and on earth. And enough is Allah as a Disposer of affairs." (Koran, Surah 4:171
A devout muslim appears to be instructed in the quran to deny Christ. Christians are people of the Book.
If a muslim - by definition - somone who submits to allah, does not understand his own religion than i may ask, why is he muslim? Christianity is spread throughout the known world and is known in all muslim countries.
If someone is truely ignorant to Jesus and does not understand what he has rejected, then that is between him and God and he will have to explain him self. He will be judged regardless. God will make His own decision but personally it is better to do things the right way ie through Jesus by the Spirit.
Another question arises, is allah in the quran the same as the Christian God?
We are saved by grace and not works. Want to know more ask.

. Judgement day is like noahs ark. Once the doors are shut the offer is over.
Please watch out, it is unfair to judge another christians relationship with God. The one who will be saved is the one who hears the words of Jesus and does them.
God bless you