I guess that was kinda cryptic..., sorry.
What I meant was that the prophecies are the reverse of each other, in that good is bad and bad is good (hence the white is black and black is white comment). So, where the Mahdi is supposed to be “good” — he is actually “bad”. And where Israel (and Jews) are to be destroyed, they are really “saved” (at the coming of Christ).
But, aside from the “reversal” of each other, they are the same prophecies.