btw i went back and checked and yep, i even captioned the pictures with "oh look here are some people who knew what they were getting into"
it's commentary. the idea that you can't protest working conditions because you knew what they were when you were hired is silly. saying "they knew they'd have to work holidays" is consistent with saying "they knew the breakroom would be chained shut." it makes no difference what they "knew" at the time, and the only real difference between the two is that one is "obvious" (i.e. it's something I support, so of course "they knew what they were getting into" doesn't apply here) and the other is just "part of the job" for some reason
Do you honestly see no difference between working conditions and work requirements? There is a difference.
Guys that work in nuclear reactors have difficult and dangerous working conditions, but they still have to do their jobs, and they have a right to expect that the company should make it as safe as possible, but part of their job is to work in a dangerous place.
Guys that work in retail stores don't have difficult and dangerous CONDITIONS but they do have certain working requirements, and even if you don't LIKE working on Thanksgiving, if that is a work requirement... you have to do it.