Island Fox, you keep asking, "Why don't they organize fedex ground?"
One of the problems trying to organize fedex ground is the drivers are all "independent contractors". Even if an IC owns 3 trucks then you have to organize the 3 workers, sign a contract w/their employer, go to the next IC and repeat the process, etc, etc. I'm sure somewheres in the fine print in the IC's agreement with fedex, there is a way fedex could then void the agreement, particularly if it is an "at will" type of agreement. There are currently some state Attorney Generals going after fedex under the concept that the IC's are employees because of fedex's guidelines/work rules. (Maybe because state budgets are short funded and it's an additional source of revenue.)
If the states win the case maybe there is a better chance of organizing employees as opposed to IC's. A lot less contracts, saving paper.