Oh I get it now. I don't know where you get your information, but reading about Osama's life and where he developed his radicalism might help.
Yea yea, no doubt you want to make a big stink about his ties to the Muslim Brotherhood in his formative years, but again, that is ignoring the broader concept.
Fact is that our interests aligned when it came to killing Soviets, then they parted ways when it came to Kuwait and American troops leading the effort against Saddam. Sure, you can get into the weeds of the United States often ignores reality when interests shift, but the simple fact is that they did.
Aid to Egypt (regardless of the government) is not an issue for me. I think we shouldn't hold any delusions about the end result -- it might end poorly for us. That said, Egypt is simply to important to write off, and if F-16's are what it takes to find common interests, then F-16's are a good place to deal. Egypt is going to get weapons from someone -- it might as well be us -- at least then we are able to keep a major foot in the door, and have far more leverage -- something that benefits us immediately.