Your original question is fraught with misconceptions and error. You might as well ask why God grows up little babies to be muggers and rapists and murderers. Couldn't God prevent that? Couldn't God make the world perfect and we would all grow up in 16 children Christian homes with loving moms and dads and eat sugerplums from trees and swim in rivers of bourbon?
Yeah, guess what? God didn't make the world like that. He made us free and that involves challenges and pitfalls. Some people are born into Christian families and have a "head start" and end up rebelling and going to hell. Others grow up as little pagans and find God through a conversion. It's a strange world God made. The consequences of our choices do not disprove the existence of God.
SD
Ok, we're connecting here. You are saying that God plays favorites and give some folks a head start by letting them be born into Christian families while others have to try to find him through a conversion? And if they fail to do so, he damns them to hell? That's not a very nice God, is it?
Both you and God know there are Buddhists living in the remote Himalayas who will never hear of Chrisitianity. If God knows that, why would he damn those folks to hell?