If we turn the rudder to port,
the water being pushed back by the prop strides the port side of the rudder
(and NOT the starboard side) and the boat moves starboard.

Except when examined with a high powered light and magnifying glass, that
statement is just plain wrong.

One *could* make a case that the stern moves to starboard when the rudder is
hard aport, but the "boat" itself will move to
port because of the headway.