I'll introduce an idea called reference frames. In a nutshell, reference frames are where you fix your head on when making observations. (Sticking a camera would be easier to imagine.)
1st scenario where the air flows across a stationary wing. Imagine sticking a camera on the wing itself. You'll see that the wing is not moving while air particles fly over it.
2nd scenario where the wing moves in stationary air. Stick the camera on the wing again and you'll see the exact same thing. Air particles fly over the wing. The two situations are also the same when you stick the camera on the moving air; you'll see the wing slide past while the air doesn't move. (Unless it's disturbed by the wing, but you get my idea.)
What conclusion can you draw from this? With only air particles and the wing, there is no way to tell if it's the air moving or the wing is moving. This means that any force exerted in one of the scenarios will exist and will be exactly the same in the other scenario.