Till the west has control of international monetary institutions and the world's economy is pegged to the west, it leaves little choice for Pakistan to abandon the west. This is realpolitik. This does not mean that Pakistan's policy makers are looking to not have strategic ties with China if they had the western option. Throughout the honeymoon periods of Pakistan-US relations, Pakistan has always made sure that its relations with China were not impacted.Did you watch the video? Do note a significant faction of Pakistani populace loves the west (as all Chinese should've experienced here in PDF) just like India does, they will and can choose the west any time. Our two nations are pulled together by convergence of geo-economic interests aka the BRI or CPEC, and pushed together by common threat from India. But on China vs west, Pakistan will at best stay neutral, this is a choice.
This is the reality of a smaller power having to maneuver between two larger powers. So while it is a choice, it is a forced one or one of compulsion.