By ELIYAHU STERN, NY Times

MORE than a dozen American states are considering outlawing aspects of Shariah law. Some of these efforts would curtail Muslims from settling disputes over dietary laws and marriage through religious arbitration, while others would go even further in stigmatizing Islamic life: a bill recently passed by the Tennessee General Assembly equates Shariah with a set of rules that promote “the destruction of the national existence of the United States.”

Supporters of these bills contend that such measures are needed to protect the country against homegrown terrorism and safeguard its Judeo-Christian values. The Republican presidential candidate Newt Gingrich has said that “Shariah is a mortal threat to the survival of freedom in the United States and in the world as we know it.”

This is exactly wrong. The crusade against Shariah undermines American democracy, ignores our country’s successful history of religious tolerance and assimilation, and creates a dangerous divide between America and its fastest-growing religious minority.