A strike will only work if it causes more inconvenience to the public at large. This will make my life better.
Technically true but make your own mind up http://www.theguardian.com/uk-news/2013/sep/12/royal-mail-strikes-privatisation
I read there may be a Royal Mail strike over privatisation.
I have to say as a supposed lefty I find the idea completely pointless. In fact I'd even welcome a strike. I get my important info via email, my packages delivered by courier and do my banking online. The only mail I get delivered...