This is also likely an insurance limitation as well. Where I work most employees are insured for basic injuries on site. Only those required to move equipment have the add on that they might move equipment weighing 50 lbs or more.
So if I move a desk that weighs 51 pounds and throw out my back, getting work to pay for it might be difficult because I should have gotten facilities to do it as they have the heavy weight add on.
It feels like you're trying to blame the union for pretty standard practices at established companies.
I think this was a case where no reconfiguration was involved.
The two big arguments I see against unions are
1. lazy workers
2. corruption
And in the case of 1., I mean come on. Lazy workers are everywhere union or no. In the case of 2., yes this happens. Wage theft from the worker by management happens probably a lot more, on the other hand. It impacts at least 1/3 of minimum wage earners in cities like LA and Chicago, and for those who have experienced a pay violation on average they loose out on 12.5% of their actual paycheck (1). Just look at the second page of this report and see the horrors for the working poor in our country who are under very little labor protections; all of these issues would have been stymied by a union protecting labor.
At least with a corrupt union you have some recourse where you can drum up internal support among similarly exploited people, and change your organization via vote. As a nonunion worker, in contrast, you can't do anything to enact change if management isn't playing ball with labor, short of quitting your job and losing any and all your benefits like healthcare in the process.
1. https://irle.ucla.edu/old/publications/documents/LAwagetheft...
Wage theft is serious, but has enforcement paths independent of the presence of a union and if reform is needed, it should start there.
I am sympathetic to the plight of the poor but they can be harmed by labor practices supposedly friendly to them.
Sometimes people end up in the "yes I can do that" status group.
Could be they have union representation and contract rules that give them considerable agency coupled with low cost and risk.
Could be they are untouchable for some other reason too, principle friend, family, lover, child, sibling... Or, could be they have secured it through various relationships, power, leverage.
Unions do not cause this.
Poorly functioning workplaces can permit it to happen, and any workplace, union or not, can be poorly functioning for a ton of reasons, legal, contractual, managerial, financial...
Where that agency exists, sometimes people exercise it, simple as that.
I've worked the same role in union shops and non-union before. Non-union paid more and had less deadbeat co-workers to navigate around. Depends on your profession and skills, honestly. Probably a benefit for amazon pick and drop workers.
Really sucks at mixed union and non-union tech companies, though. At my current company programmers aren't even allowed to move our own computer between desks because only union people are allowed to do that, and getting the union people to do it will take over a week and be done at an inconvenient time interrupting work.