The reason that your statement is false is a consequence of the definition of a fluid. A solid can support a force by deforming. If I push on the end of cantilever beam, it bends a certain amount, just enough to balance the force, and stops. A fluid can not do that. Apart from the special case of a confined fluid, like the hydraulic fluid in a cylinder, a fluid must continue deforming to support a load. An unconfined fluid, like the atmosphere, simply cannot support a force, like the weight of a plane, without flowing. This is absolutely fundamental to the nature of a fluid, and is absolutely not a matter of inefficiency of the wing.