Christianity makes the world a better place, as compared to if all those people were non-believers in any religion.
I think a better question is “would the world a better place if people who are currently Christian became their next most likely alternative belief system?”. I’m going to go out on a limb here and speculate that if the median Christian lost his faith he wouldn’t become a rational-empiricist.
I think this is ambiguous. It might be interpreted as
Christianity is good for its believers—they are better off to believe than to be atheist.
Christianity is good for Christendom—it is a positive force for majority Christian societies, as compared to if those societies were mostly atheist.
Christianity makes the world a better place, as compared to if all those people were non-believers in any religion.
Which of these do you mean?
I think a better question is “would the world a better place if people who are currently Christian became their next most likely alternative belief system?”. I’m going to go out on a limb here and speculate that if the median Christian lost his faith he wouldn’t become a rational-empiricist.
I’d change this one to:
Christianity is good for most of its believers—they are better off to believe than to be atheist.
~62%
~69%
~58%
Edit: I case it wasn’t clear the 70% refers to the disjunction of the above 3.