The real battle for religious freedom lurks beneath the Ground Zero mosque controversy. It is sadly ironic that our public debate presents the mosque proponents as the partisans of liberty: That includes everyone from imam Feisal Rauf, the project’s sharia-touting sponsor, to President Obama, Mayor Bloomberg, and the rest of the Islamist-smitten Left, to the GOP’s own anti-anti-terrorist wing. Yet, wittingly or not, when they champion this mosque and its sponsors, it is the agenda of an alien and authoritarian Islam that they champion — an Islam against which many American Muslims chafe. When it comes to liberty, no one...