UFCW seems to be one of the worst unfortunately. My first job was a brief stint at a grocery store represented by them. This is when self checkouts were first introduced. Over half of the cashiers were laid off, and a couple had to relocate to stores that would've doubled their commute. Before that a cashier told me that when he started his job, there were only like 8 steps to journeyman pay, but during later negotiations it got doubled to 16 or something crazy like that.

I feel for you when it comes to the emotionality of it all. Myself and some of my comrades put our EVERYTHING into that struggle for close to 3 years, just for the department to dissolve just a couple months after the contract was ratified. I'm still kinda fucked up from how terrible and demoralizing it all was and I havent been at that job for nearly a year