The Unions are as much a part of the EU establishment as the ERT - the club of global corporates who help shape EU policy. They all share a common purpose. Imposing red tape and onerous business regulation helps large firms that can afford to pay entire departments to write overblown HR policies and manage pointless QA systems but kills SMEs and lean enterprises with disproportionate costs. Likewise, the global corporates are best placed to afford generous employee benefit packages and high additional employment costs. The end result of both EU legislation and Union policy is that the global corporates grow bigger and more powerful and independent national businesses suffer.
Of course the other sphere in which all are winners is the public sector, which positively delights in ever-expanding HR departments churning out volumes of HR policy, ever more generous paid parenthood and family concessions and enhanced terms for Union members. Hurrah for the EU! I recently advised a scaffolding contractor struggling to compose an Equal Ops policy demanded by the Council not to bother - just google for one published for itself by a different Council in Word format and change the name. And to do the same for any other policy they demanded. Why not?
Of course Union bosses - Unite's McCluskey amongst them - have their snouts deep in the comrades' trough and you can be sure their own remuneration packages wouldn't shame the lads from Transport House in the heyday of the 1970s. McCluskey is remarkably sensitive to criticism, though - with the Speccie enjoying a recent gob of shite from Carter-Fuck.
Further swingeing cuts to public services - particularly local government - will reduce Unite's strength even further, as will changes to the political levy. Cutting EU regulatory burdens will help smaller firms. Together, these policies will achieve what the dinosaur Unions can't - improve working conditions and pay for all British workers, reduce zero-hours contracts and enhance productivity.