Except even without the F-16s the U.S. provides billions in military and economic aid, so the F-16 isn't a "last card" at all.
Oh, do tell.
It does indeed appear to me that Pakistan, not the U.S., is in the driver's seat and is the party wielding power over the other.
Don't insult my intelligence. I am aware, and you should be too, that Jihadis in Pakistan and Afghanistan and Kashmir are Pakistan's creation, predating the 1979 Soviet invasion of Afghanistan, tracing all the way back to 1965 and beyond that to the first days of independence, when Jinnah sent irregulars out to ignite war that the nascent, British-staffed Pakistani Army would not. America supplied weapons and some funds after 1979, but Pakistan was always in the driver's seat. Pakistan's leaders wouldn't have it any other way.