Did Obama call America a Muslim country? Not exactly. The actual quote:
Now, the flip side is I think that the United States and the West generally, we have to educate ourselves more effectively on Islam. And one of the points I want to make is, is that if you actually took the number of Muslims Americans, we’d be one of the largest Muslim countries in the world. And so there’s got to be a better dialogue and a better understanding between the two peoples.
He could say exactly the same about America being a Jewish country. And it is a Jewish country as well - which is one reason America is such a compelling and vibrant and fascinating place to live.