A union wont strike on action that the majority don't want, legally they aren't allowed to. FGS if you are going to try and sound informed at least use some actual facts. Please show me an example of a strike exclusively for men's pay rises if you disagree.
Also, the main issue for my union at the moment is ensuring that workers mental health is cared for and maternity discrimination is tackled. So unions work on a variety of issues.
Also, when students are affected, this is an unavoidable consequence, but one unfortunately which justifies the means. The services a uni or college can offer if its staff are affected would be far lower if the strike wasn't to go ahead.
Strikes should absolutely be the last form of action. As a trade unionist, strikes are the last resort. Negotiation, cooperation and consensus working is something which happens everyday, but you never ever get to see it. Particularly in the media.
Last year there were 60,000 people who marched in a demonstration in Manchester against the service changes in the English NHS. It wasn't even reported on the news. Yet if 1 of the top bankers received a cut to his bonus (its nearly always a man), then our news pages are stuffed full of it.