Regarding resident unions being toothless without the ability to strike, and yet unionized residents still get benefits beyond what non-union residents receive:
I think one of the benefits to the union is that in contract negotiations with the hospital, if we don't reach agreement, we can force the issue to go into arbitration. I'm not sure that is possible without a union.
The union doesn't make it possible to go to arbitration, but arbitration is very expensive for residents, individually. Also, the hospitals, were they not legally insulated would probably require binding arbitration in a resident contract. But it so happens that hospitals are incredibly legally insulated from their bad actions, and doubly so, since any resident who even tries to challenge bad behavior will be branded.
I agree with that without availability of a job action, the CIR is mostly castrati. However, there was an old union at the University of Michigan that did strike in the '70s. According to old news articles in the Detroit News, they didn't walk off the job, but they did picket the place and according to one article those who did see patients in the clinic refused to fill out billing forms so the patients were seen for free (or at the hospital's expense). This can't happen today since MC/MCD doesn't allow residents to bill, but it was a novel way to get things done.
The idea of a non-work stoppage job action does have merit in a hospital system that is an otherwise union shop since most unions have agency contracts that require other unions to honor picket lines. This might have some merit. Let's flesh this out. CIR unionizes a bad hospital. The hospital says initially, we'll fire your butts if you sign the petition, which is likely. Now, there is an unfair labor practice to grieve and the NLRB is on board. The union is formed, and hospital says, nice, send your money to SEIU who cares, now get back to work, and by the way, we're going to make your life miserable wobblie!
So, a "job action is called." A strike picket is set up at the loading docks and front entrances and bad PR is had by all, but the non-picketing residents do go to the clinics and do see patients and do everything they're supposed to do. This could still cause the hospital great consternation for a lot of reasons. First is it will likely make the TV news these days, causing the hospital anxiety. Second, it might disrupt the delivery of supplies and good the hospital needs to run its operations, if say, the Teamsters and Afscme refuse to cross the picket lines.
This could be the worst possible nightmare for a hospital in a highly unionized environment.
A job action that is not a job action, per se.
A strike picket which is not a work stoppage, but causes others to honor the picket line.
The resident's get their message out in the clear light of day (nothing like the clear light of day to make cockroaches scatter).
Bad PR, very bad PR for the hospital (what're they gonna say? We only work 'em 80 hours a week and 30 hours at a stretch without sleep while paying them less than the burger flipper you got your MI from?)
Hmmm, the more I think about this, the more I think there may be some merit here. Probably need to talk to the AFL/CIO and the trades councils since most job actions are real work stoppages, but then, residents are not in the usual situation and perhaps the union leadership needs to make accommodation for this. But will they?