Speculation is pointless, their records will be examined. It wouldn’t be the first time, but even a negative attitude and/or neglect could lead to deaths or suffering which were avoidable. Look at Aboriginal deaths in the healthcare system for an example of this.
Even if these people were utter saints professionally they have harmed everybody by undermining the trust nursing staff need extended to them to do their jobs properly, which benefits all of us.
It’s completely contemptable behaviour that nobody should make excuses for or diminish. Targeting people for where they were born is insane.