If the CM's want better conditions why don't they form a union? With the specialized skills of many CM's, and the value of true customer service, the CM's would have a real shot at establishing collective bargaining.
Unlike a Walmart where a the entire staff of a store could easily be replaced in a matter of days, if not hours, WDW is vulnerable because it is a single location, they couldn't weather even a short disruption of services, and even the corporate culture dictates that not just anyone can jump into a CM role.
Hopefully if this were to happen the new union would work with the company to provide better working conditions for the employees without extorting the company into oblivion--ala the UAW.
A few notes on the specifics of WDW economics. Florida does not have an income tax so even if the standard of living is a bit higher than other cities people take home a greater portion of their paychecks than most places. I would also imagine that if WDW keeps their seasonal employees on the books while they are not working it is to avoid unemployment claims. It is probably cheaper to pay the administrative costs, continuing benefits, and slightly higher returning wages than pay people to not work for weeks at a time.
Another observation is people have to realize their choices will impact their lifestyle. The decision to work towards a degree in theater is going to impact your earning potential. I'm not denigrating a theater degree. I myself have a liberal arts degree, but I realized when I chose to pursue that degree that my earning potential was not nearly as great as someone specializing in business or a technical field.
Finally there are tons of options out there if someone is seriously looking for a way to better their lot in life. Try finding an apprenticeship program in a trade. Plumbers, sheet metal workers, and electricians do very well, but often they have difficulty finding journeymen to fill out their ranks. In St. Louis the sheet metal workers' union advertised on Cardinal broadcasts last summer seeking apprentice members they were so desperate to fill jobs. Those opportunities may have slowed recently, but they are still out there.
Another option is the military. The easiest way to move from low income to middle / upper middle class is the US military. The benefits are amazing. In the short term it is the easiest way to pay for college and get technical training on the job. Long term you can build a great career, craft a nice life for a family, and retire in as little as 20 years. You won't make CEO dollars, but you will make a good wage, have opportunities for education, healthcare, and family benefits. You can start a savings plan early and really have a great nest egg. If you are smart about your career you can retire on half pay with unmatched leadership skills, a security clearance, and specialized job skills that can take you directly into a six figure plus private sector job.
I admit it is tough out there, but there are many ways to improve your lot, sometimes it takes more than hard work. It might take short-term sacrifice and persistence, but just sitting back and blaming an employer or the economy isn't going to help you.