Conventional wisdom is that Delta benefits by having one or more workgroups non-unionized. It seems to me that the pilot group pays the price. Worst in vacation, worst in deadhead, worst in crew meals, no holiday pay, no alcohol on a TPAC DH, etc... because they'd have to give it to someone who doesn't have a negotiating body?
Personally, I think flight attendants who don't want to be unionized in today's managerial climate are nuts and short-sighted... but that's been the opinion I'll offer only when asked. Now I'm starting to wonder if I shouldn't bolster the organizing campaign.