well, they forget how they used persecution throughout their history right from the beginning to foist their beliefs on everyone else.
from a book by James J. O'Donnell, The Ruin of the Roman Empire -
"Christians resisted persecution well--both the ordinary spasmodic kind and the infrequent broader campaign--because their communities were many-headed, did not have substantial real property, and lived so fully intermingled with Roman society that they could not simply be carved out and attacked. A century after Galerius, when Christian emperors set out to--we might as well use the word--persecute 'pagan' communities and practices, they were far more devastatingly effective. They halted the supply of state funds for traditional practices, crippling much of what had been long familiar. Then they seized buildings and banned ritual in them, sweeping the landscape nearly clean of the old ways. What survived--and much did--was personal, small-scale, or highly localized. Over a relatively short time, the new bludgeoned the old into submission and eventually supplanted it. That's what real persecution could do, unafraid to use violence but not needing to use very much of it. But Christianity never faced anything like what it would later visit on the traditional cults."
they were the real experts at persecution. we see this all the way down to the present day. there is no hesitancy on the part of christianists in trying to bat the world into submission to their way.
sadly, they set the example. we see in the world of Islam the same type of fringe groups, eg. Al Quaeda, who adopted this christian view to their own imagined advantages.
like i said, turn the other cheek...