What most of you have forgotten, since it didn't affect you directly, was that things like child labor, unsafe working conditions, seven day work weeks, no holidays, no healthcare, pay in the form of company merchandise are all things that did happen. The worst was probably not enough pay to live on, which forced people to live in company housing, buying from company stores at such high prices when all was said and done the employee owed the company money. Those things are all gone because of unions.
Our children don't have to work ten to fourteen hour days, seven days a week in work conditions that today would get a company shut down. You have a five day work week so you can spend time with your family. You get major holidays off so you can watch your kids open presents on Christmas day rather than having to trudge off to work. Most places offer healthcare so you don't go broke when get a broken arm set and cast. You get paid money rather than greeting cards. You could, until recently, earn enough to live somewhere and feed your family with a little left over to put away.
Employers don't do those thing because they think you're such a great and wonderful employee. They do it because if they don't they will either have to deal with a union coming in or have each and every last employee leave.
Doctors used to perform surgery without anesthetic; now they do.
Our main source of high speed travel used to be horses; not anymore.
Rifled muskets used to be the last word in personal armament; not for a long time now, though.
My point is that times have changed since we had child labor, and robber barons in industry oppressing the workers. Unions have, by and large outgrown their usefulness and union bosses are largely the tools of the Democrat Party. Add to that the number of union officials who've been convicted of racketeering.
I'm perfectly happy for you to be in a union, if you wish. Have at it. Just don't get pissed at everyone else who isn't interested in being a drone putting in their time; locked into a seniority-for-promotion system that emphasizes pay and benefits over productivity and seems to expect that the company owes them a job for life. That doesn't work for everyone anymore and it's not working for all of you, either. Life is change. Get over it.