If God is all powerful and yet merciful, why would he send the majority of the human race to eternal damnation?? Christian or not, every human is still His creations and He cares about each individual.
2. Why do you think the Gospel is to be preached to all -- all the world and every creature?
3. Why do you think that the Bible has been available in almost every language for a very long time?
Obviously, you have not done your homework, and wish to blame God, even though He has been speaking to sinners for a long time.