Sarcasm aside, the fundamental thing to understand about these little quadcopter drones is they're new infantry weapons. They're lightweight, short range, and carry small payloads. Infantry weapons do not make vehicle-based weapons platforms obsolete, because they can't fill that role. In some cases, they're threats against vehicles, but they're still not vehicles.
The reason no country's military is terminating their tank program due to drones is there are things you can do with a 100+ mm cannon that can deliver rounds at supersonic speed from over a mile away that you cannot do with an infantry-deployed, slow-moving, short-range quadcopter and it is silly to pretend otherwise.
The same is true of jet fighters. An F-35 has an operational range over 1000 miles and can carry 18,000 lbs of weapons. No, a tiny little Amazon quadcopter cannot do anything an F-35 can do. For one thing, it can't shoot down an F-35. It can't even see the F-35, because the F-35 can operate beyond visual range.
Since the drone is an infantry weapon, it means you aren't doing shit with drones if you don't have your infantry deployed. Now, what's your plan to land infantry and build a base if you don't have armor, artillery, aircraft, or these other things that drones supposedly made obsolete?