What Protects A Worker's Rights? The Unions?

No - the unions do not protect the worker's rights.  All you have to do is watch the previously posted video to find out that the unions are all about political power.  Who is entrusted with protecting the rights of the working class?  It would be the Department of Labor. 
The Department of Labor was created in 1913 by the father of socialism in this country - Woodrow Wilson.  So - what have we learned here today?  All you union backers have to do is put your trust in the federal government and they will take care of you.
Oh - that's as long as they are done ensuring that the illegals in this country are getting paid a fair wage.