You do realize that being against public sector unions isn't the same thing as working to "end worker rights" don't you?
Other people who realized that public sector unions were a bad thing:
F.D.R - "All Government employees should realize that the process of collective bargaining, as usually understood, cannot be transplanted into the public service. It has its distinct and insurmountable limitations when applied to public personnel management. The very nature and purposes of Government make it impossible for administrative officials to represent fully or to bind the employer in mutual discussions with Government employee organizations. The employer is the whole people, who speak by means of laws enacted by their representatives in Congress. Accordingly, administrative officials and employees alike are governed and guided, and in many instances restricted, by laws which establish policies, procedures, or rules in personnel matters."
George Meany - (the former president of the A.F.L.-C.I.O) - “It is impossible to bargain collectively with the government.”
It may seem strange to you that FDR and George Meany agree with the Koch Brothers on this, but that is the reality. The links provided in this thread show that the Koch brothers are working to end public sector unions to bring back the idea of a representative democratic government that can work for the public good. This isn't a "horrible evil" or something, it is sane policy.