I don't know all the ins and out of the bill and I know how much the Tories would love to get rid of unions, but I don't have a problem with the 50% aspect.
It seems quite reasonable to me that strike action should require a majority of members, rather than a majority of voters. Of course, the real problem is that so many union members are only members in case they need support. The whole ethos of a union is not of interest to far too many members, but their membership and subscriptions have value to the organisation, so this fact is just ignored. In one way, someone joining a union when they personally have problem sticks in my throat, but then again it's one more member - for now.
The sad thing is the longer the Tories are in power, the more workers need Trade Unions. If only Jeremy's tenure could have a positive effect on being a member of a union. I can see TUs viewing Jeremy's victory as a life line, but sadly I suspect this is going to be another nail in the coffin of unions. Too many workers don't see the point in fighting back against unfairness in the workplace and TUs are becoming more and more like dinosaurs.