Well here's a rational response for you.
The State Department issues a warning to the Afghan Government stating; "The U.S. will not tolerate any government who engages in, sanctions, or allows the persecution or execution of anyone in their country, for the expression of their personal, political, or religious beliefs. Further more; the right to express ones own personal faith or religion is to be respected, so long as the individuals personal religion is peaceable and does not promote destructive deeds or actions to the common good of his neighbors or the government: and they shall not be violated by government sanction, or by any other religious entity.
Violations of such basic civil and human rights, allowed or sanctioned by the Afghan government, it's officials, or by any group within their government, and or its jurisdiction, will be considered by the US Government as persecution, and will be followed by both swift and severe retribution by the Government of the USA."
"Our position on these fundamentals of basic human rights are non negotiable, and we fully expect any civilized nation, worthy of our assistance and or alliance, to both respect and embrace these values".
Now please enlighten me, as to just how this would be destructive to our foreign policy?
I wouldn't expect such an overt ultimatum as you composed, but I sure do agree with the moral sentiment of it.
I figure we deal with some unsavory countries (and turn our heads at certain unpleasantness), just as we deal with some unsavory informants now thatteh Toricelli Principle has (properly) been cast aside.
See, e.g., China and the Falun Gong.