A Muslim's oath of allegiance.

Diana West reports this:

Pew polling from 2013 indicates that 91 percent of Iraqis support making sharia the law of the land (the figure in 99 percent in Afghanistan).^[1]

With those kinds of majorities, it is a logical inference then that all Muslims think that shariah law should be the law of the land, including the law of the land to which they have emigrated. Stated differently, where is there any evidence that Muslims in the West, anywhere in the West, believe otherwise, that shariah should not be the law of the Western land in which they reside?

Muslim-majority country

Answer: there is no such evidence. More to the point, shariah does not permit a non-Muslim to rule over a Muslim. Therefore, a Muslim swearing an oath of allegiance to the United States as part of a naturalization proceeding is swearing allegiance to a country that is fundamentally inconsistent with shariah.

The linked article immediately above also reveals that under shariah a Muslim who leaves Islam must be killed immediately. A Muslim may also not receive the death penalty if he kills a non-Muslim. In a host of other ways, that same article shows how fundamentally hostile shariah is to any Western country.

Muslims are not and cannot be loyal citizens of a Western country and they demonstrate at every opportunity their determination to remain separate and apart from infidel culture and laws. Every step that a Muslim takes in a Western country is an implicit three-finger salute to his infidel neighbors.

Muslims cannot swear honestly to be loyal citizens of any Western country. Any oath of allegiance of a non-apostate Muslim is a lie. And if any of this offends the delicate flowers of our society and in the ranks of the Council on American–Islamic Relations, so be it. The ludicrous idea that Muslims in the U.S. intend to integrate into our infidel society and that they are our allies in the war on Islam terror infuriates me even more.

Notes
^[1] "Something Missing from Iraq War Story (As Usual)." By Diana West, 5/19/15.