I hate to be a devil's advocate, but this is the point of strikes, and it's exactly what they are doing. And I personally think it is terrible that it can be allowed to happen (I am not saying that they should be happy with what they have, I am saying striking shouldn't be an option, it shouldn't get to that stage. I don't know how that could be done! Besides the government regulating wages, which is communism and hated by many, I don't know a solution. But I still maintain that striking is a bad thing.)
Striking hurts the little, blameless, people more than it hurts the government. It stops people getting to work, it makes commuters' lives hell, and it has the potential to cut people off (tube strikes, train strikes, etc). It is a bad thing.
I'm getting defensive of myself but note that being "a bad thing" doesn't mean I'm not supportive of the strikers.