Trying to convert Muslims to any other faith is a crime in Afghanistan.
I have a huge problem with that too. In fact I'm pretty bothered with my taxes going to prop up such a government. What kind of weak minded people need state protection against those who dare to question the faith, to keep the faith? If you're so strong in your belief then you can handle attempted conversion.
The Afghans need to scrap the law and learn to deal with unwanted religious prosyletizing the way the rest of us do:
Close the door.
Say 'No thanks." or for the insistent: "Talk to the hand."