This is not a matter of religion for the American electorate. Sharia law is completely incompatible with our Constitution and the statute law that has been built on its foundation. That is the point.
It is interesting to note that progressives seem quite determined to keep church and state separate when the church in question is the Christian church, but now are more than willing to accommodate a religion that explicitly unifies church and state (which is the whole point about Sharia law). Why is it bad and wrong in the first case and good and right in the second? Do progressives truly hate our nation so much that they are willing to destroy it without any thought to what will follow? That is nothing less than nihilism.
There is no way to implement Sharia Law without “respecting an establishment of religion”. Therefore, Sharia Law is incompatible with the Constitution of the United States.