If you know anybody who works a 40-hour week, with time-and-a-half over that, likewise an 8-hour day, has benefits like pension, health coverage, the ability to complain about safety hazards; thank a strong union.
It’s the only counter to the unlimited power of the immortal (and soul-less) corporation, now that the government is closer to a wholly-owned subsidiary of USA Inc.
A wise, strong union will strive for a balance of power with the boss, and take care of the members against abuses. Education and transparency will cover the rest.
A company union will be a shill for the boss. At (Philco-)Ford (Aeronutronics), they knew unions all too well, and to avoid all that fighting, they took pretty good care of the troops. At Hughes, I paid agency fees to a branch of the Carpenters Union (an historical quirk of the Spruce Goose days) , that was (unfortunately) a company union, and it showed.
The stewards, who were, shall we say, under-educated in such things, were suborned to be supervisors, and then (long after I’d left) set up for DCAS charges in skipping inspections. Got ‘em good. Vicious? You don’t know vicious.