While the F-16 and F-35 were designed decades after the F-4, as a high end air superiority platform the Phantom retains significant capability advantages over the lighter platforms which make it an invaluable asset to the Turkish Air Force. The Phantom’s operational altitude is significantly higher than either the F-16 or the F-35, both of which are restricted to altitudes of little over 15km where the F-4 can operate at altitudes of 18km. This provides the Phantom with a significantly greater degree of survivability in air to air combat as well as when operating against enemy air defences. The F-4 is also considerably faster than the F-35, which restricted to speeds of Mach 1.6 is the slowest modern fighter in service, or the F-16 which retains a Mach 2 speed, with the Phantom able to engage adversaries at Mach 2.23 - making it one of the fastest U.S. fighters ever built. The fighter also carries a far heavier payload than its lighter counterparts, and due to its higher speed can impart more energy to the missiles it deploys than either the F-16 or the F-35 can.
Havent I told you this multiple times,,,think what will happen when they face modern opponents much less an F4...