Umm.. yes. ISIS will kill every Christian in this world if they can
Maybe not a Christian "Holocaust," but one of some sort. The Quran? teaches that all infidels must be your slave, die (smite them at the neck), or convert.
99% of the people that ISIS have killed so far have been Muslims, not Christians, lets turn the talk of a 'Christian holocaust' down a notch
Or "holohoax" as heil would put it.