Wise unions only strike when they know they can win. It is illegal for you to be fired, punished or harassed for attending union meetings or for supporting a union. The law protects your right as workers to improve your working conditions. No, it is against the law for the company to take away any benefits you now have in order to punish you for voting for a union. The company would like you to think that all union officials everywhere are corrupt.
Most unions are decent, honest organizations dedicated to improving the lives of working people.
Unions aren't perfect - nothing is. At least union officials are elected, and bad ones can be voted out. Remember, you, the employees are the union. It is against the law for the company to close or threaten to close because of union activity. Remember, companies go out of business because people stop buying their product, not because their workers are treated fairly.