technology

Aircraft aren't being shot down by drones in Ukraine, at most one way attack drones have taken out a few helicopters in flight. Fighters fly to high or fast to be taken out by drones. Drones and loitering munitions take out fighter aircraft that are parked on the ground. Fighter aircraft are still very important, a big part of the reason why Ukraine's air force can't operate freely, even at high altitude beyond the range of Russian ground based air defence, is Russian fighters lobbing air to air missiles at them from 200km away. At one stage, Russia was firing 6-8 R-37M missiles a day at Ukrainian aircraft. This capability led to attrition of the Ukrainian Air Force to the point F-16 deliveries were necessary. Yeah there aren't that many, if any, dogfights anymore with this kind of BVR capabilitiy.

Ground based air defence is playing the biggest part in area denial to enemy fighters. Russian aircraft are reduced to lobbing standoff weapons like glide bombs from high altitude outside of the range of Ukrainian ground based air defence. Ukrainian fighters can't even do that due to the Russian Air Force, they have to perform low altitude, terrain masking flights to fire munitions at Russian ground positions. Fighters still play an important role and can't be replaced by drones yet. Iran has a massive drone and missile arsenal, yet they still want modern fighter jets.