[geezerjay]

> Unions is also a legitimate force in capitalism. In many ways it could be good for Amazon. If gives them a way to deal evenly with their employees.

This. Capitalism is all about freedom of association. Unions only start to become incompatible with capitalism if they start to force themselves as a monopoly to control who may or may not work for a company.

[cmrdporcupine]

I like to make the distinction between guilds (limiting access to professions and employers and controlling seniority and positions) and unions (collective bargaining). In most western countries the line between the two is heavily blurred, to the detriment of the union movement which has suffered heavily over the last 40 years.