I cannot see how the upper steering shaft can possibly be bent...You must have other issues.
So...Where is the "binding", internal or external?...Do you have clearance between the hub and the top of the outer column when the nut is tightened?...If you loosen the top steering wheel hub slightly, does the inner shaft turn freely?...Is there any up/down/sideways play?...
Could be that the inner column length requires adjustment. That is done at the slip joint near the rubber coupling in the engine bay.