I have heard the right wing crap before. Basically comes down to thinking workers are so stupid they don't realize they wont have a job if they bankrupt the company. In reality, since they workers have the bigger vested interest in than a company than is about stockholders, or millionaires not working at the factory every day. In those cases, the union typically hires, and knows more about the company, and what it takes to keep it running efficiently than the board.
Union contracts also usually give more stability, not less. You set a cost, and expectations. They have set times to negotiate changes, and know better the local pay scales. It is true, companies that think of employees as necessary evils to attempt to screw over, are generally the ones with unions you hear about. A well run and managed company will have no issues with a union. If the unions run the others out of business faster, it's all good, in my book.
> They served a purpose in the beginning
Since China is in the state where they do not have trustworthy government and regulations, it is exactly like those days now. The people need a voice that can voice the issues and suggest improvements, rather than just quitting or just ending up dead. As the workers are the ones who know best what is happening in the factory, if you can get them involved in a way they can have someone they can trust to talk to, and voice grievances through, it will make everyone's lives better.
A few bad Unions do happen, and I am not happy that most unions in the US are getting more focused on taking care of retirees than actual workers. But I have never seen them kill a company, other than one that was destined to fail anyway.