That was because of USSR.I am entirely disappointed with China and it's posture toward Pakistan. Despite all the big talk of mountains and ocean depths the harsh truth is China barely treats Pakistan as ally. Considering the amount of flak Pakistan takes for siding with China the benefits are actually peanuts.
USA provided far, far greater help to Pakistan in the 1950s-1960s days of US-Pak bromance. As is usual Pakistan sold itself too cheap.
Is your question with referance to Pakistan or Muslims? Because te two are quite separate. A Pakistan is that sovereign geography on the Indus Basin whereas Muslims are a followers of a faith found on every continent on earth. It could be a Negro in Bronx with a name like Mohammed Elijah, a white gora Bosnian with a name like Akmet Bacic or a Chinka eyed Malay etc.You actually think USA gave a damn for Pakistan or Muslims.