I must agree with srkruzich, that at its core the Muslim religion was in founded as a totalitarian religious organization.
For a little background on its founder I recommend checking out this link
http://www.thereligionofpeace.com/Pages/History.htm
While I do argue in favor of Muslims being able to become good Americans, I must also accept that it was founded on the ideals of one man who could not accept the ideals of others. That said I also must included the following.
The First Amendment
The Constitution of the United States of America
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof:
While those who did come to this great land originally to worship the Lord as they wished. Our founding fathers made so all peoples could practice their beliefs under the tree of liberty that the founders planted for all Americans to bask in its shade and taste of its sweet fruit.