Robert Neville wrote:

If a fan has fan blades that are designed to *efficiently move
air*, then why won't that same basic blade design also be
*efficiently moved by air* ?

Basic aerodynamics/physics. A fan blade is a wing.

The function of a wing is to provide lift in a vector perpendicular to
it's surface.

Please explain how or why a wind-turbine blade needs to provide lift?

It actually can't provide lift, because (a) it's not turning under it's
own power, and (b) if it did produce any lift, that lift would be a
vector force pointing out of the down-wind-facing surface of the blade,
and would act to pull the blades forward and destabilize the support
colum and topple it.

The larger the blade, the more drag (energy loss).

So by that logic, a sailing ship would be propelled faster (capture more
wind energy) by having a small sail vs a large sail.

Great logic.