Not quite. The fundamental concept of collective bargaining is similar, but unions are for employees to band together and negotiate with their employers, not fo

Not quite. The fundamental concept of collective bargaining is similar, but unions are for employees to band together and negotiate with their employers, not for consumers to band together and negotiate with their vendors. (In US law at least, unions are very tightly regulated, managers can't unionize, etc. A group of people negotiating what their Prime membership means would absolutely not be called a "union.")