I quite disagree with your view about Christianity. Christians do not cut off family members that are not christians.

I don't even get the change your name part. Care to explain?

Most of the laws we see in our lands were gotten from the bible, like isolating people with contagious diseases for instance. The bible contains principles that are for our own benefits, that's why I believe in it. One does not even need to be a christian to benefit from the knowledge found in the scripture.