Idea is to financially strangulate Pakistan to point where the financial needs erode defences capability (which they already are), and finally to level where to get bailout, IMF ask Pakistan to end its nuclear program or go bankrupt.
Its the West that protects Pakistan's exports by giving them GSP+ status and suffers a trade deficit with Pakistan worth billions not China
Its the West allows millions of Pakistani's to settle in their country and earn a high living standard not China.
Its from the West that you receive billions in remittances not China
Its the West whose embassies you line up in front of to emigrate, not China
Thousands of Pakistani's are trudging at this very moment across Asia and Europe to get to the West as illegal immigrants, not China.
Its a western culture and language you try to emulate, not Chinese.
Etc etc etc
You cannot blame the West for your own profligacy.
You cannot blame the West if the job of running your own economy has been so mismanaged that you are in need of the IMF 22 times.
You are in charge of your economy as Bangladeshi's are in charge of theirs.
You make a dogs dinner out of it then the responsibility is yours and not some deep conspiracy of the West.