Why can't we have any other organization to which we delegate our power, but which then does exactly what we want it to do?
Because with the power comes an opinion on how to best wield it — maybe entirely for the good of the community, but often not limited by that. People why strive to be in control most often have their own axe to grind, too.
But a larger problem is the "they want". "They" are many people, and their opinions on a particular topic are "mostly aligned" at best. This is not a single opinion or want. This is why any collective action of this sort can be "mostly satisfactory" for the participants at best, and often quite disliked by some minor fraction of them.
> did exactly what they wanted and none of what they didn't want?
Unfortunately, many workers want to do horrible things, such as to make it illegal for someone to work in engineering of they don't have a CS degree, or if they came out of a bootcamp, or the like.
Workers voting to put up barriers to entry, and keep out the competition, is both rational, democratic, common in unions, and also a completely horrible thing to do.
Because it results in a parasite effect.
The union uses its power to negotiate a pay rise for its members.
The business then gives the pay rise to all the employees.
Each employee thinks “Well I would have got the benefit if I was a union member or not, so I’ll stop paying my union fees”
Because with the power comes an opinion on how to best wield it — maybe entirely for the good of the community, but often not limited by that. People why strive to be in control most often have their own axe to grind, too.
But a larger problem is the "they want". "They" are many people, and their opinions on a particular topic are "mostly aligned" at best. This is not a single opinion or want. This is why any collective action of this sort can be "mostly satisfactory" for the participants at best, and often quite disliked by some minor fraction of them.