teaching people about other religions or atheism other than Islam does not harm anyone. it is simply knowledge. there is no propaganda or blasphemy or danger in it. but pakistanis are so scared of this because their faith is so weak. what's to worry if you truly believe in Allah

teaching Islam here is what is actually scary. because the Islam taught extends to extremist values. the Islam taught here is forced onto students of different faiths who feel uncomfortable studying another religion. the Islam taught here results in forced converts.

the villain here is you who fears people having their own will to choose their faith and practice their values. because you fear that unless you instill it into your children since birth they won't embrace the faith you believe in and then the next gen won't believe either.

forcing your religion onto someone also goes against Islam for your knowledge. you can try to introduce it and guide it to someone but never force it upon them. their faith should be theirs to choose and discover.