Yes, that's true ... but it's not easy, and it's far out of the area of influence of an ER doctor.
Psychological damage manifests itself in many ways. Some are celebrated, such as the drive towards promiscuous sex. Many successful actors are the product of traumatic life experiences; there seems to be a correlation between skill in playing a role and a need to escape real life.
On the other hand, some manifestations, like obesity, are often treated with contempt and horror.
I’ve been in theater for 30 years, and don’t buy into actors being particularly traumatized. They do tend to have empathy and imagination which lets them step into another person’s body and soul - well, if they are any good. Most actors are journeymen. It is generally the stars who get hooked on drugs, sex and mayhem.
On the other hand, some manifestations, like obesity, are often treated with contempt and horror.
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Contempt and horror are wrong. Just as the ER people being snide and nasty. And as others have noted, someone is an enabler here. That person - as well as Donald himself - is the real enemy.