This is only my opinion ... but American Muslims are mostly African-Americans. They have no reason to push Sharia ... like immigrants from the ME do. Given the ideology in Europe, and given the nature of their recent immigrants ... it is reasonable to the immigrants to set up bantu-stans within Europe, so that the language, clothing, religion and law take familiar forms. For some Americans, who want to be more like Europeans ... they would allow that here also, at least for Mexican immigrants.
I am generally tolerant of other people, including people from other cultures. But that doesn't mean I want an African witch doctor in my neighborhood. They are fine back in Africa though. And at this point, I am pretty much against all human rights ... it has been abused to absurdity.