Unions and Discrimination

CATO Journal reports:

The claim that organized labor has been a force for racial egalitarianism
can only be called a myth. It is one of the many myths that
pro-union historians have perpetuated—similar to those, for example,
that unorganized workers suffered from an “inequality of bargaining
power” (Reynolds 1991), that strikes are conflicts between
employers and employees rather than between different groups of
employees, or that violence was more often employed against than
by unions (Thieblot and Haggard 1983). Perhaps the greatest myth
of all is that organized labor is good for workers generally. In fact,
unions transfer income from the unorganized to the organized, and
depress total income to such a degree that even organized workers
are poorer (Vedder and Gallaway 2002).

For a look at the union movement in Obama's Chicago click on this.