It may or may not be in any individual's best interest.

For example, look at "bumping rights". If a company needs to eliminate a union position, and this is occupied by someone with say 20 years seniority, that person can "bump" some other union member out of their position who has a lower seniority. So, that person whose role was eliminated can push a person with only 5 years seniority out of their position. And then that person with 5 years seniority can bump a person with only one year seniority out of their position. And the person with 1 year seniority has no one newer than them so they get laid off.

Was it in the best interest of that newish employee to be part of a union? So they can act as a meat shield for someone much further in their career who would theoretically be much more employable in the general market?

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krior 2 hours ago | parent [-]

The wikipedia atricle only cites american sources so that may be something unique to how US unions operate.

	▲	IncreasePosts 2 hours ago \| parent [-]
		Cousins of American style bumping is definitely in employment law in the UK(where it is done by the employer instead of the employees and union). It also exists at least in Germany(sozialauswahl) where employees theoretically who could get chopped are given points to determine who to chop, where seniority is one of the ways to gain points, as well as age, as well as having children.