The controversy over President Trump's pullout on the Turkish Syrian border will settle down quickly. It is another useful debunking of ancient shibboleths and decrepit truisms, like the long-impregnable encrustation of false wisdom that moving the U.S embassy in Israel to Jerusalem would unleash hell upon the whole Middle East. There are about 35 million Kurds, approximately half of them in Turkey, where they make up about a fifth of Turkey's population. A century ago almost all the Kurds...