Uplinker, easyJet's UK BALPA threatened strike action over the implementation of the EASA FTLs ISO the UK CAA's which they'd been operating under. The vote was overwhelmingly to strike. easyJet capitulated and now (then) the FTLs were wound back to the UK CAA's with even more concessions. This was a few years ago now.
So occasionally, the pilots do stand up and when they do, it can be quite effective