This has nothing to do with unionization, per se. It has everything to do with predatory anti-trust activities!
The Obama regime will probably not do anything about the anti-trust violations.
FedEx Express is not covered under the National Labor Relations Act like UPS is. Fed Ex Express (the overnight division that uses planes) is covered by the Railway Labor Act. Fed Ex explicitly keeps the ground and air companies separate solely for this exemption to the NLRA. UPS’s view is that FedEx is operating with a competitive advantage that they have not been classified as operating under the same set of government regulations.
That being said, unionization is not a death knell for all companies. UPS is one of the most profitable (highest profit margins in the transportation industry) and well run companies in the world.