Yes. Massachusetts which is NOT a right-to-work state. That means the union can negotiate a clause in the contract that any nurses working at the hospital must join the union. Here is a current contract that includes pay ranges:

https://www.massnurses.org/public/resources/bargaining-unit/...

'Step' is years of experience

In some states, RNs working in hospitals are unionized. And that does help with some of the things I mentioned.

Outside of hospitals, and outside of RNs, unionization is much less common. E.g. in a clinic setting very few employees are unionized.

Yes, they have massive unions but that doesn't seem to be helping.