I think I’d be more sympathetic to their cause if they didn’t have a strike every single year.
A quick search over the BBC news website, and a cursory glance makes it at least look like they’ve had one every year since at least 2000. *
It doesn’t actually inconvenience me anyway, bikes are great :)
* I’ve not checked this in great detail, but this is certainly the third strike in as many years, and there’s definitely been more before that.