Sorry my answer was strictly about the issue with labour in the USA.
The French hospital issues are entirely different. I could a write an entire essay about it - I’m French myself. Most of it is due to brain dead management by the Health Ministry in the 90s. It was thought that by training less doctors, there would be less acts done and it would cost less to the sécurité sociale. The order agreed because it protected their revenue. Add to that that far too many acts which could be done by support staff have to be done by a doctor to be reimbursed and widely underpaid nurses and you get the current shit show.