Why does God allow different religions and allow people to be deceived by them when there is only the one way to God , and that is through Jesus ? If you are born and indoctrinated into a false religion it would be very hard to know the truth and accordingly they would not get the opportunity to receive salvation, which seems unfair.
In the beginning there was only one “religion” and all mankind worshiped God. He did not “allow” these other religions. Since the fall of man Satan has been in control of the world (1 John 5:19). It was Satan who influenced the minds of rebellious men and drew them away from God.
In John 14:30 Jesus called him the prince of this world, and in 2 Cor. 4:3-4 Paul said he’s the god of this age, who blinds the minds of unbelievers so they cannot see the light of the Gospel.
Then Paul said, “But God , who said, ‘Let light shine out of darkness’ has made His light shine in our hearts to give us the light of the knowledge of the glory of God in the face of Christ (2 cor. 4:6). And in 2 Thes. 2:10 he said those who perish do so because they refused to love the truth and so be saved. So the light is there for all to see. Only those who refuse to see can be blinded.
Jesus promised that everyone who seeks Him will find Him (Matt. 7:7-8). He could say that because the light of God is in every heart. The fact that so many have been and are being saved from places where the knowledge of the gospel is forbidden on pain of death bears witness to the truth of His promise.