Fischer,
Then they are all correct -
It is partly Bernouli's and partly AOA.
A flat bottom, and even a semi-semetrical airfoil can produce lift at a neutral AOA. If travelling fast enough, the lift can overcome the weight of the vehicle, and the plane will fly straight and level with a slightly negative AOA.

My Texan with gear up and full throttle crossing the runway after a steep dive looked to be pointing slightly toward the earth as it went by at 80+mph.
I had to hold what I felt to be considerable down elevator to keep it from balloonig towards the clouds.

In closing,
The shape of the wing provides the lift with or without efficiency. AOA and speed changes the amount of lift.
I can get a brick to produce lift if it travels fast enough and has the right angle of attack.

Bob