Not that I'm disagreeing with this outcome at all... But if agreeing not to poach is collusion and conspiracy... Then how is it that it's legal for workers to form unions and strike? Isn't that just as much "collusion and conspiracy" from the other side? I mean heck, consumers organizing to boycott a product is a kind of "collusion" and "conspiracy" as well that is just as arguably "anti-market". Is there anyone who…
Yes, if you believe that you can reduce any use of a word down to its most abstract concept giving you the ability to equate anything to anything else. By those standards collusion is also a tomato, a pair of shoes, and my left ear. Very Zen. But, given nobody else thinks this way, then no, unions are not a conspiracy. A conspiracy is pretty much defined as such when everyone involved constantly tells each other "don…
The issue is not whether the collusion is public or private, and it is also not whether it benefits the rich or the poor.
The issue is that in general it is illegal to reduce competition by forming a cartel. People to it privately because it is illegal. The one exception for this is forming a cartel of sellers of labor, i.e. a union. Note that, if it were not a labor union, a cartel would be illegal even if it was benefiting poor people at the expense or big corporations.
A much better reason for allowing labor unions, is that unless they use physical force (which of course they do, all the time, but I am speaking theoretically here), they don't really create that much market power. People can always choose to work during a strike (again, assuming the union doesn't physically stop them, which is in theory illegal). If unions don't create market power, what is the point of them? I think they can be useful to help management to stick to long-term commitments they make to workers, and to provide an alternate way for workers to be represented in the company.