I have worked as a traveler in a union state, and at home in hospitals in my right-to-work state. Even though I was not a member of the union in California, I certainly benefitted from the union, and am very pro-union for nurses now. The majority of lawyers and doctors bill for services. They do not punch a time clock. If they are employlees, they usually have contracts spelling
out their rights and responsibilites. I challenge you to find a lawyer who doesn't get bathroom breaks in an 8 hour period 4 days out of 5. (I was a lawyer in another life, I promise this doesn't happen to these professionals).
In California, I ALWAYS got breaks. Always. The hospital had to answer to the state if I didn't. I never got overloaded, because they had mandatory staffing ratios. At home, there were many shifts when I would work 12 hours without getting a chance to pee even once, and forget about eating. I have had to care for an unsafe number of patients many, many times. I have seen a nurse physically assaulted by a physician, and the nurse lost her job.
The physician, the other "professional," was back at work the next week with a very minor pat on the wrist. The wronged nurse lost her livelihood. Because she didn't have a union to back her up. I'm now in a wonderful job where I don't deal with these things anymore, but I consider this job a miracle from God. When the hospital was my only option, I lived in fear every day.
Unions aren't perfect, but they are way better than being out on a limb every day with management sawing behind you.