[brightlancer]

IANAL but when I looked into this ~15 years ago, my understanding was non-union workers have a legal right "to communicate with each other about your pay, benefits, and working conditions". That doesn't come from union membership.

Unions have the ability to _force_ collective bargaining, but worker protections aren't restricted to union members.

[anigbrowl]

Certainly, but many employers discourage this practice. I'm characterizing the employer's basis for offering less than the default to union members.