You are right on that. We would go off-topic to discuss Trump here. But, while at it: I believe Trump would have not only pulled the troops out by May 1 but would, in his typical nonchalant style, be vocal about his decision and put the Europeans into their (cowardly) place and would have taken on the Democrats who would challenge his decision of pulling out. The current noise about the Biden decision is pure dirty divisive American politics for which Biden may pay a heavy price in next elections.
PS. 'Corruption' is rampant in many countries of the world, including in Pakistan. But I don't think Pakistani State is going to collapse because of that. Afghanistan, on the other hand, is not even a 'nation'.
True what you said about Biden and Trump.
Pakistan I wouldn’t say collapse but lawlessness where the states writ isn’t strong can create void in society whereas people will create their own justice “vigilantism” in some aspects.