Easy TL, some of them can't. Those guys have my sympathy.
For those that chose to stay, well then you get into an interesting discussion about whether it's 'fair' that the gravy train has come to a stop for S/Os on the 744 and been moved onto a twin engine track for F/Os and Captains. I don't expect that many of the 767 crew will give too much thought to the issue. Sad that we have to have the discussion to start off with but anyone with an eye on promotion will not vote 'no' on this EBA due to the pay. They may find other reasons- and I've found one if it's not clarified as I'd like- but it won't be the rates of pay.