Seems there is an unexpected feature on the AESA of the F-22 and F-35 (and, strangely enough, the F-18F!). They can fry electronics at fairly long ranges:
AESA type radars have been around a long time, popular mainly for their ability deal with lots of targets simultaneously. But AESA is also able to focus a concentrated beam of radio energy that could scramble electronic components of a distant target. Sort of like the EMP (Electromagnetic Pulse) put out by nuclear weapons. AESA has demonstrated that it can disable missiles and aircraft. Ballistic missiles are another story, as they are sturdier (to handle re-entry stress) and have fewer electronics to mess with.
Your armada would have a hard time engaging, as, one by one, they malfunction and fall to the earth far below.
You could probably do the same thing with AEW or ECM aircraft.
In order for your drones to survive, you'd need to hardent them and that causes the cost to skyrocket.
Drones have never had a throw-down with first world opponent. They may not do so well.
The counter to AESA radar frying electronics has long been known, even before AESA radar existed, since the defection of a Soviet MiG-25 Foxbat pilot. It was discovered that his advanced aircraft didn’t have solid state electronics, but tubes, that were far more resistant to electromagnetic pulse.
While I’m not suggesting that drones should have tubes, the philosophy behind this was sound as an effective defensive measure. If nothing else, their electronics can be shielded, and they can fly blind for some seconds until the threat is over—something you can’t do in a high performance aircraft.
Likewise, turnabout is fair play. Since such aircraft are expendable, why not put a few in the armada that are designed to produce a powerful, directional electronic pulse towards a high performance aircraft? Instead of a 1000lb bomb, they carry a 500lb capacitor and a radar dish. And the best part is that even if they can’t use it against an aircraft, they can use it against ground targets.