You're right. God doesn't want to send us to hell. People who choose against God choose to be separated from Him (after all, who'd want to spend eternity in a loving relationship with someone they don't love?). God dismisses from his presence those who have no desire to be in his presence. The Bible says that God loves everyone (Jn. 3.16) and doesn't want anyone to go to hell (Mt. 18.14). But he won't force people to be with him.
Should Christians stop spreading their views across the world, since it increases a person's accountability? Great question. The answer's no, and I'll tell you why. The message is out there. People know about Christianity. People have heard things, and many at least have some kind of awareness, even if it's minimal. At that point, hearing the truth matters a lot, and can make an eternal difference for a person. But even for the people who have never heard (people on isolated islands, for instance, let's say), they are worshipping fearful, dark gods who bring pain and breed terror. They are believing lies and walk in a great darkness of spiritual blindness. It makes all the sense in the world to bring spiritual light and truth to people who live in fear and violence.
> Telling people who have a religion to change their religion to yours rarely works
Then you don't know your history, my friend. According to Wikipedia (
http://en.wikipedia.org/wiki/Christian_ ... ute_growth), "Using data from the period 2000–2005 the 2006 Christian World Database estimated that by number of new adherents, Christianity was the fastest growing religion in the world with 30,360,000 new adherents in 2006."
CBN reports, "in 1900, there were approximately 10 million Christians in Africa. By 2000, there were 360 million. By 2025, conservative estimates see that number rising to 633 million. Those same estimates put the number of Christians in Latin America in 2025 at 640 million and in Asia at 460 million." (
http://www.cbn.com/spirituallife/bibles ... 20722.aspx)
And China is on course to become the world's most Christian nation (
http://www.telegraph.co.uk/news/worldne ... years.html).