They can't help themselves. The first Greco-Roman writer to take serious note of xtians, Celsus, said:
It seems to be in their blood to be obnoxious.
Quote:"Christians, needless to say, utterly detest one another; they slander each other constantly with the vilest forms of abuse, and cannot come to any sort of agreement in their teaching. Each sect brands its own, fills the head of its own with deceitful nonsense...".
Celsus c 180 AD
It seems to be in their blood to be obnoxious.