Remove the incentive to form one. I read once that an employer was asked why his company was union free in an industry full of unions. He said he treated his workers like they had a strong union. If you treat people badly then they are going to think about forming a union to fight back. Intimidation.
What do the colors of the American flag stand for. While the flag's colors did not have a specific meaning at the time, the colors were significant for the Great Seal of 1782. White: Signifies purity and innocence. Red: Signifies valor and bravery. Blue: Signifies Vigilance, perseverance, and justice.
Red represents the blood shed by the Patriots who fought for independence. The colors of the US flag were taken from the colors of the British flag. At the time the flag was designed, the red did not mean anything in particular. Officially the red in the flag does not stand for anything. Since the creation of the flag many have suggested that the red could stand for different things such as the blood shed to bring about independence or courage, but these are meanings suggested after the fact and never officially attached to it.