Arnold the hard won conditions over many years for unions have not been greater hours but lesser hours. In the 1880s there was a massive campaign to achieve a standard 8 hour day (40 hour week). I'm not sure when it was but some time last century we fought to make the standard week 38 hours.
In much of the building industry unions have fought and achieved a standard 36 hour week. I've spoken to some of their key delegates involved in the transition and their members are dead set against any increase back to 38. Of course less working hours means less pay and more time away from work. Over time the pay passes the previous level and you are left with a better lifestyle.
If it saves jobs in the process and our members support it, of course we will seriously consider it as an option.