You're probably unaware of this, but by statute the U.S. government has a bipartisan Commission on International Religious Freedom which, among other things, publishes an annual report on religious freedom worldwide. According to its chairman, U.S. policy in this area is "missing the mark."
It should come as no surprise that the CIRF finds U.S. policy wanting. One of the worst cases involves Iraq, where Christians who lived there for over a thousand years are now being killed or forced to emigrate - right under our noses.
The CIRF is not proposing that religious freedom should be the determinant of U.S. policy, simply that we consider those issues seriously as policies are formulated. Unfortunately, there's no evidence that's happening.