The anti-union guys sometimes have a almost religious conversion...usually after they're getting pinched for something they didn’t do.
During our ALPA drive we had an anti-union guy who was very vocal against the union. ALPA passes and we have a merger that adopts their CBA. He’s about 62 when he gets type 2 diabetes and is out for good, but now gets 50% salary til retirement. Now he’s very happy for ALPA and pilot contracts / protection. Under the old “work rules” he would have gotten paid for 12 months at 60% assuming he had a huge sick bank and then it would have been bye Felicia!
Even at VX ALPA passed with about 75% which means 1 in 4 was anti-union. My favorite were the US Airways guys. Man they were pissssssssssssed at ALPA. And they hated AWA.