In some countries you can, but that assumes that your employer is willing to negotiate with the union instead. In Denmark how it normally works is that unions a

In some countries you can, but that assumes that your employer is willing to negotiate with the union instead. In Denmark how it normally works is that unions are specific for a given profession and a single union negotiate on behalf the employees in that profession, regardless of them being a member or not. If the majority of the employees where to go to another union, the employers could switch to negotiating with that union instead. For some professions people just negotiate their own salary, that is true of software developers for instance. Nurses on the other hand have their salary negotiated by the nurses union. It really depends on the type of work and how uniform it is or how poorly the employers behave. The US unions seems, from the outside, pretty immature and amateurishly run. They are to small, to narrow in focus, to expensive and poorly organization.