BEagle
As someone who used to fly in a credible air defence system (before we scrapped it) your so called 'drones' would be a low priority target in a full up shooting war (just as much as helos and transports are). The FJ fighters and bombers are the targets of choice in a large COMAO and I would expect Air Superiority to be established quickly by one side or the other - the days of a 4 month struggle for this is long gone.
The 'drones' would either survive until 'Air Superiority' was established or the air war would be over very quickly for us. Then the helos, transports and 'drones' would all be swatted by an umolested enemy fighter sweep.
Interestingly, your 'drones' may well be better at penetrating enemy air defences as they can be built in low observable shapes without nasty RADAR reflective canopy rails and cockpits. Try googling RQ-170 to see a good example.
LJ