Is it time to end the Divisive Practice of so-called "Right to Work" states?

Last time I checked, Unions are not mandatory. Why would it be illegal for a company to move jobs to a “Right to Work” state? Your colors as a liberal clearly show, restrict and outlaw anything that is not in line with your political ideology. If union workers are mad that Boeing is opening up shop in a “Right to Work” state, they have only to be upset at their union bosses who obviously are not interested in their best interest.