Is it the duty of a Christian to combat prejudice among his or her congregation? [Spirituality & Religion]

I think that duty should be everyone's anywhere.

But yes, i think a christian has a duty to combat prejudice.
Love thy neighbour and all that.

It seems, however, they feel that it is their duty to promote it. I'm basing my assessment solely on the visible effects of their actions.

It is the duty of any person of faith regardless of their faith.