because somehow God has a plan for all of us to achieve salvation...
You are exactly right and here it is in God's own word
John 14:6
Jesus answered, “I am the way and the truth and the life. No one comes to the Father except through me.
...according to John, which incidentally, most biblical historians concur was written by THREE different authors approximately 110 YEARS after the death and resurrection of Christ (therefore, the deciples of John as the apostle could not have lived that long...