IAF might be able to acquire retired recently retired Polish or Romanian mig-21s. Since they don't seem to want anything modern or new.
Blame isn't on uncle Sam or GE. It's totally and squarely on us. Your line of thinking resembles the current state of Pakistani people & establishment, and I know it will hurt.
Disruption in supply chain is globally known as I know first hand how much Indian enterprises suffer specially due to short term, piecemeal orders and lack of foresight on both government and private sector instead having the courage to do what they must if we are become a hard power.
Nothing more nothing less.
This much has always been done.
Blame rests with ADA for delaying the development of Mk1.
Minimum ratio for fighter fleet is 2.25:1. IAF and IN even today have just 1.75:1. That is the amount of fighter pilot shortage we have.
I think the IAF's is 1.5. Not enough basic trainers. They are training just 100 per year.
Many pilots are on desk jobs or away for training. This reduces the ratio in actual squadron. But during war, all these people come back to their respective squadrons. Like some are away for QFI course, some for FCL/FSL course or some maybe posted to AFA and other training establishments plus the pilots posted in HQs. When you take these pilots into account, the ratio comes to about 1.75:1
IAF is sanctioned 4200 pilots in total. And something like 1900 aircraft. So that's around 2.2:1 if everything is up to standard across the board.