Religion turns children into assholes

[guillaumeb]

6. From the study:

Overall, our findings cast light on the cultural input of religion on prosocial behavior and contradict the common-sense and popular assumption that children from religious households are more altruistic and kind toward others. More generally, they call into question whether religion is vital for moral development, supporting the idea that the secularization of moral discourse will not reduce human kindness—in fact, it will do just the opposite [29].

So, accepting that this is correct, I have 2 questions:

1) Would a decidedly non-religious society increase human tolerance and kindness?

2) China is a very secular country. The Chinese Government, in fact, does all that it can to discourage religious belief, going so far as to literally place spies in religious households, and going even farther by building concentration camps for theists. Is this real world example sufficient to suggest that the conclusions of this study are, at this point, disproven by actual history?