Sadly, raising ones head above the parapet probably just opens you up for the incoming redundancy rounds about to be fired.
It's a bit like those emails saying boycott Esso for 12 months to force a petrol price cut. Nice idea, never happen. The several hundred personnel in the States, for example, all demanding to be sent home - with the press impact, cost of moves etc etc would make a great point and show of force. It'd be hugely embarrassing for HMG too......is it defiance? Mutineering? Okay, a bit ott, but I'm sure anyone doing it would be on a list to walk in the next couple of years.
The Septics I work and socialize with are aghast at the treatment of our people and our handling of the financial situation in the mod in general.