How are they under threat, explain?
Dont just repeat fascist mantra.
The only restriction is they can't call themselves Muslims. Other than that, no restrictions.
For the vast majority of history, Pakistan and Afghanistan have been one country, therefore people should not be surprised if each has a major influence on the other. Dress, cuisine, languages, culture, religious outlook, and lifestyle is the same between the two peoples.
India directly interfered in East Bengal, a Muslim region, to promote nationalistic sentiments and created a separatist aOTE]