You just shot yourself in the foot my friend
here you affirming that since 1971, the key date here is 1971 and not 1947 ( So what went wrong in a matter of decades? ) , so you see you lost half of the country in a matter of decades What does that show? There is only a social contract, which is cemented by the army and rigorous one sided Pak studies in schools and nothing more.
Let me give you another recent example, Iraq very strong army, but now disintegrating, because arbitrary lines were drowned. But on the other hands Nations which has a history of being empires, stay rock solid, you don't need nuclear weapons, you don't need an army to keep you together, the nation stays together because they identify with something bigger, which is bigger than any state can provide.
Anyways I wish you as a pakhtoon a happy life in Pakistan, but we as two countries must make peace and live in harmony as for too long the people on both sides of suffered. Imagine opening all the borders, carrying on commerce, there is so much talent in this part of the world.
/Peace