Ezekiel 3:18
When I say unto the wicked, Thou shalt surely die; and thou givest him not warning, nor speakest to warn the wicked from his wicked way, to save his life; the same wicked man shall die in his iniquity; but his blood will I require at thine hand.

It's the right thing to do to give them a warning and it's what God expects. Once they're warned we won't be held accountable for it. If we let the kike just stew in his hatred for Christ without rebuking him, then we will be held personally accountable.