This question raises two related issues. First, is it true that the Christian faith maintains that the only way of salvation is through faith in Jesus Christ? Yes, but it is not arbitrary: there are important reasons. The first reason is that the founder of Christianity, Jesus Christ, taught this Himself. He said, “I am the way, and the truth, and the life; no one comes to the Father, but through Me” (John 14:6). On another occasion He taught that “no one knows the Father except the Son and those to whom the Son chooses to reveal Him” (Matthew 11:27, NIV). Furthermore, those who received their instruction in the faith from Jesus Himself also taught this. The apostles Peter and John said, “Salvation is found in no one else, for there is no other name under Heaven given to men by which we must be saved” (Acts 4:12, NIV).
Finally, there is a vital theological reason why Jesus is the only way. Someone has to remove the sin in our lives that separates us from a holy God. Only Jesus, the sinless incarnate God-man, was qualified to do this by his substitutionary death on the cross. Jesus is the only way because He alone provided the “only way.” If you are interested in learning more about this or are just looking for somewhere to practice your faith with likeminded people, then you can find a place of worship here: weareradiant.com.
The second issue of this question is whether Christianity is more exclusive in its claims than other religions. Actually not, since all the major religions make exclusive claims. According to Muslims, Jesus was a failure and Muhammad was a success; the Qu’ran stands alone (in Arabic) as the culminating point of divine revelation; and those outside their faith are infidels. According to Orthodox Judaism, Jews are the exclusive people of God; God is one and not a Trinity; they need no redemption from sin outside the provisions of the Law; and Jesus is not the promised Messiah. Hinduism is insistent on an impersonal Brahman as god and the law of karma and reincarnation as the way to “salvation.”
All religions have exclusive claims but may seem more tolerant than Christianity because they share a common view that good deeds are the basis for individuals to achieve approval with their god. Other religions may differ from each other as to which deeds provide the greatest merit, but most agree that people can earn salvation by their individual effort and virtue. This is self-assuring to proud people and gives a sense of acceptance and accomplishment, placing people’s efforts as the central focus. Since Christianity doesn’t recognize human merit to earn entrance to Heaven, but teaches that entrance is by confession of sin and faith in the person and work of Jesus only, it is perceived as personally depreciating, restrictive and narrow-minded.
In essence, the Christian faith is really more inclusive than others because it offers forgiveness and adoption into the family of God to everyone without regard to wealth, social rank, race, accomplishments, etc. Christianity is unique and offers the assurance of life after death on the basis of Jesus’ sacrificial death on the cross, the benefit of which is offered freely to all by mercy and grace alone.