It's impractical.
All it would do is make their crops grow.
Those who got 'defiled' (and were notified it had been done) would soon get over it.
I don’t understand why we don’t just do it.
I'd say because we are children, and that is the kind of thing that kids would do.
Besides, it is not the people that are bad, it is their ideology which is being supplied by ruthless dictators hiding behinds the cloak of a government ordered religion.
While your 'emotional' response to the solution is easily understood, I think it would only ensure the (mindless sheep of the Islamic world) that the US are PIGS from SATAN who drop .... well you know the rest.
I'd say because we are NOT children, and that is the kind of thing that kids would do.
It’s impractical.
***Actually, in a way it has already happened. There are companies that send the ashes of departed loved ones into space. As those ashes fall to the ground, they defile whole swaths of territory. By their own religion, they are already defiled, so all we have to do is the press release.