Mom27 - if you just read the OP, then she says she hates "working til 6", not "working 40 hours a week.
If you read all the posts, then she later says " it would not make a difference to my work if I left at 5.30. I've basically never worked anywhere where a one hour lunch break has been enforced." - stating clearly that it isn't the 40 hours she's objecting to, but the 'trapped hour' in the middle of the day where she has to be there, but isn't being paid.
Then, at 13:17, she says, very clearly "I'm not requesting to work fewer hours. But I resent being forced to take an hour for lunch when I would rather take 30 mins and leave at half five."
Twodogs - as she has stated, it is the 'trapped hour' she dislikes. As, indeed, would I if I had to stop, sit and twiddle my thumbs for an hour, then stay late to make up that time, rather than just taking a shorter break, cracking on, and leaving half an hour earlier.