Erasmus of Rotterdam(circa 1465-1536) said to his opponents,
that "You think you are Christians, but you are not even human
beings."

I think that there is now a very large number of people who keep
huge noise about their Christianity and use it for political goals,
economical or other earthly goals, and yet they are not truly
Christians nor human beings; after all, Christianity, to me at least,
is a religion of peace and humility, whose founder declared that one
should not answer to evil by evil, but by turning the other cheek.
But many Christians forsake this, and believe that the sword that
he said he brought to Earth was to be taken literally.

Being human is about being a moral animal, capable of feeling
empathy towards all people, whatever their background. Thus many
people all around the world, who think that they are Christians are
neither good Christians, nor human beings.