Why do Christians become Christians?

[SteveII]

How about a source for that so I can comment?

Sorry, it's so readily available that it didn't occur to me that you wouldn't easily find it yourself. Here you go:

http://www.pewforum.org/2012/10/09/nones-on-the-rise/

And in 15 years, if those China trends continue, Christians will be almost 20% of the Chinese population.

http://www.pewforum.org/2015/04/02/relig...2010-2050/

If you scroll down, you will see a chart that shows the change between 2015 and 2050. Christians in the US drop from 78.3% to 66.4%. Unaffiliated from 16.4% to 25.6%. Wolrdwide, Christians stay the same at 31.4% and unaffiliated drop from 16.4% to 13.2%.

And what are these unaffiliated? From your link: However, a new survey by the Pew Research Center’s Forum on Religion & Public Life, conducted jointly with the PBS television program Religion & Ethics NewsWeekly, finds that many of the country’s 46 million unaffiliated adults are religious or spiritual in some way. Two-thirds of them say they believe in God (68%). More than half say they often feel a deep connection with nature and the earth (58%), while more than a third classify themselves as “spiritual” but not “religious” (37%), and one-in-five (21%) say they pray every day.

What point are you trying to make?