Have a look at the process for unionization: https://www.nlrb.gov/about-nlrb/what-we-do/conduct-elections https://www.nlrb.gov/about-nlrb/what-we-do/conduct-ele

Have a look at the process for unionization: https://www.nlrb.gov/about-nlrb/what-we-do/conduct-elections https://www.nlrb.gov/about-nlrb/what-we-do/conduct-elections. For instance it's per workplace and there's a threshold of how much support among the workers you need, etc. It's not just something you join and then you're in a union.