Unions are particularly effective when labor is commoditized and fungible. Less so when labor is not exchangeable (suppose it hinges on the question of if a gu

Unions are particularly effective when labor is commoditized and fungible. Less so when labor is not exchangeable (suppose it hinges on the question of if a guild more like a union or a cartel?). Programmers like to think they are unique and irreplaceable. Some of them are. Others, probably not so much.