Unions vs companies is really just fire vs frying pan
I have had the displeasure of being in a union while working my way through collage. the Culinary Workers Union is one of the most corrupt organizations I have ever seen. there were bribes for politicians, intimidation of workers who don't want to vote in a union, followed by further intimidation of workers who did not want to join the union once it was voted in, and all kinds of cronyisms. for the 1930-1950s Unions used to be for making work places safe, and better pay and benefits for the workers, now it has become about paying union dues. nothing else matters. its all about the cash. it was not about making a better life for workers it is now all about making money that is then given to political causes that were not anywhere near related to making life better for employees. usually for team blue jackass. Government organizations like MSHA and OSHA now watch the health and safety, but could care less about how employees are compensated. also unions have driven many companies out of business by refusing to negotiate on pay packages or labor reductions when times get tough. which is why union membership in the US has dropped from around 30% to less that 7% since the 70s.
Don't get me wrong. I am not totally anti union, companies like amazon would pay everyone minimum wage if they could get away with it. also in certain industries, union labor is better. Examples are the construction industry unions and machinists unions. those kinds of unions usually require a certain level of competency to meet certain pay grades, example apprentice or journeyman electricians. they also usually have a higher standard of work quality in my experience of dealing with both union and non union electricians. personally I would want union labor performing any maintenance of aircraft I fly on, because you know those companies will cheapen it because it is less expensive to pay off lawsuits and lost aircraft than to pay for competent labor with good pay and benefits. an example of this is the GM bean counters deciding it was cheaper to pay off lawsuits for dead people, than to pay 50 cents more for a spring in an ignition lock. air lines would do the same thing given to opportunity. these companies usually donate to team fat red elephant.
bottom line is you will either take the shaft form the company or you will take the shaft from the union. the difference is the union shaft has barbs on it, so once it is in, you will never get it out.