Many people ask questions that why majority of the world population is non-Muslims? If Islam is the truth then why don’t they accept Islam? A similar question was raised to Sheikh Saalih.
Sheikh responded that majority is non-Muslim because they chose Kufr over Islam, because they choose the path of shaytan rather than the path of Allah.
Another thing which is missing is the correct implementation of Islam. Under Muhammad (PBUH) and later under the rightly guided Caliphs Islam spread to Persian and Roman Empire where majority were non-Muslims but when they saw the justice of Islamic system and the behavior of the Muslims they accepted Islam.
We can see that even today the people of Syria, Palestine, Iraq, Iran, Pakistan are Muslims. They embraced Islam at the hands of companion and remained so.
We should also ask ourselves what are we doing to guide people to Islam? Few Arab traders during the early Islamic history converted the whole Indonesia, Malaysia, Brunei and parts of Thailand & Philippines, but what have we done to guide the non-Muslims?