Pakistan can again approach Turkey and Malaysia. The great thing about international interests is that they're always changing, so Pakistan can probably go back.Pakistan can't as we have backed out when Malaysia and turkey invited us to into conference..
Further we have billions of dollars coming from expat that's keep us floating economically and to built our reserves..
But yes we can make our choices considering the benefits and adverse of action and same goes for KSA ..
As for the billions in remittances, while what you said is true, the Saudis are clearly blackmailing Pakistan. The promised billions in investments by KSA, not only didnt materialize, they were cancelled, as soon as Pakistan sided with with KSA. And with the Saudis starting to increase their level of protectionism, it's only a matter of time before Pakistani workers are kicked out as well.