Bro the bottom line is who holds the firepower.
All revolutions that succeed, do so when the army either steps aside or joins forces with the protesters and revolutionaries.
As long as the army stands with the status quo, the population, even an armed one, like the US or Pakistan can do nothing.
They are quite simply outgunned. All romantic notions of revolution stop abruptly with a bullet to the head or gut or femoral artery.
For things to change in Pakistan, seedhi si baat hai.
Aapke fauj mein ek hisse ko bagawat karni padegi.
Kyunki fauj is the status quo. And it will never side with the population or stand aside.