Godwin's Law famously (and wisely) warns against all comparisons to Adolph Hitler upon the internet.  Such counsel is difficult to follow, however, when an American political candidates does everything short of painting on a toothbrush mustache and goose-stepping with arm extended in a stiff salute. Donald Trump's recent assent to the idea that Muslim Americans be given special identifications is so grotesquely reminiscent of the yellow "Star of David" badges issued by the Nazi regime as to boggle the mind.

The situation might be tragically laughable if Trump himself were not still gaining in the polls. In the wake of the Paris attacks, a climate of fear has understandably settled over Europe and America, and it is creating a wind to fill the sails of Mr. Trump's political ambition. The crude words about immigrants and border security with which he launched his campaign seemed comic until it became clear how deeply he had struck a nerve in a portion of the American electorate. Now, even beyond those precincts in which Trump's message was initially welcomed, events have conspired to make him appear a prophet to many voters.

"Appear" is the urgently operative word here. A large portion of the American electorate has been conned, and Donald Trump is not the perpetrator of this deceit. Trump himself is among the victims over whose eyes the proverbial wool has been pulled. ISIS has convinced everyone that their Muslim identity is the most salient and significant fact about them, when in fact our obsession over their religious claims plays perfectly into their malignant agenda.

This is not to rehearse tired arguments about how ISIS are "not real Muslims." Of course the members of ISIS are real Muslims. But that is no more significant than the fact that Yigdal Amir, the assassin of Prime Minister Yitzak Rabin of Israel in 1995, was a real Jew. In a world of 1.6 billion Muslim inhabitants, "watch all the Muslims" is about as effective a strategy for fostering security as "watch all the Jews" would have been for Rabin's bodyguards before his tragic death.

This myopia is not confined to the political right, moreover. Liberals who preach that combating ISIS would best be done by lecturing Muslims on values of secularism, feminism, and pluralism have likewise been sucked in by the ISIS grift. We should no doubt all champion secularism, feminism, and pluralism in any context and to the degree that we can, but to imagine that this will have any impact on the strategic conflict with ISIS is a fantasy. Right now any list of the greatest champions of secularism, feminism, and pluralism in the Middle East would have to include the Ba'athist regime of Bashar al-Assad in Damascus, and it is the hatred of that government's lethally cruel autocracy, not any particular love of ISIS's religious ideals, that has kept ISIS afloat in Syria for so long.

However misguided Mr. Trump's view may be, the fear that is fueling its ascent is real, and its effects are not only visible here in the U.S. France has its own Donald Trump in the form of Marine Le Pen, and Germany in the person of Frauke Petry. If the problem of ISIS lingers and the terror they inspire intensifies, the fortunes of all these politicians will continue to rise. Anyone who at this point dismisses the possibility of "President Trump" is sorely deluded, and such a judgment is even more true of anyone who doubts that such an outcome would be a disaster comparable to the elections that transpired in Germany in 1932.

The emergency confronting our leaders is dire, and the responsibility weighty. As hyperbolic as it seems to say, the future of the free world literally hangs in the balance. If an effective strategy against ISIS is not swiftly adopted and applied, future generations will look back on this as the watershed moment that undid much of the hard won progress of the late twentieth century.