As far as not being able to get a job goes, it sounds like your real complaint is that there aren't enough jobs. That will be true whether or not a workplace is unionized in most cases since the employer has a certain amount of work they need done by a certain number of people.
Maybe one or two, but not a large proportion of an aging workforce riding purely on the protection of the union
Unions had their day, now they are just slush funds and protections for bad people.
Actually teachers in those were those who had been accused of misconduct and then either they were awaiting arbitration, mostly because the state wasn't paying their agreed proportion of arbitration fees, or arbitration had cleared them and the state wasn't returning them to their jobs as agreed. Some may have been bad teachers but most were just people the admins had taken a dislike to. Blaming the unions for that is pure propaganda.
I don't think you really interpreted my statement fairly. Perhaps I should have chosen another word instead of aging, but I was thinking in the traditional factory sense where there is a correlation with age and performance doing manual labor. Age should not be the indicator, performance should.
At convention centers they inflate prices by passing rules that no one but a union worker can carry anything into the convention center. The monitor broke and your booth and you run to best buy to get a replacement. Sorry, find a unionized person to carry it in for you or GTFO. Oh, you want to plug in it in? Sorry, call a unionized electrician or be sued.
An aerospace it meant everyone's role was super strict and trying to do anything outside your role was against the rule. In software that would mean things like front end programmer not allowed to touch backend code. UI programmer not allowed to touch business logic code. Etc.... Maybe someone will argue that's a good thing but AFAICT it just slowed work to a crawl and made people uncooperative
Was it because of regulations (ie who's certified for maintenance on X airplane type) ?
Unions I’ve worked in or am familiar with do care about seniority over merit as you mention. They also make it so new jobs need to go to internal candidates over external candidates. Furthermore, internal candidates are even provided retraining opportunities. Management needs to show there is no one in the organization capable of doing the job before opening it externally.
Ironically I have never heard of anyone going to management stating that they wanted to be out of the agreement that was settled for the industry they were in, regardless of their actual job.
If the government came out with a monthly 10k usd handout, I'd call it shortsighted and dumb. Doesn't meant I'm not taking it regardless.