Transfer-of-Technology and co-production ensures the missiles will not have kill switches built in them. Exported Patriot (and other Western SAMs) IFF are programmed to not to fired on F-15/F-16 (and other NATO aircrafts). Problem is that Israel (F-15/F-16) may engage in a possible war against Turkey in the future. Turkey wants SAMs that can shoot at any aircrafts regardless of type.

https://en.wikipedia.org/wiki/Gaza_flotilla_raid