It’s not like giving away part of your liver is a zero sum game, now that person is at risk of infection, has lesser liver performance, and for what? Someone who has showed they will just continue to harm themselves, and others (the person they’re getting the liver from,) if you allow it?
I don’t know any other surgeons who would do that.
There are very few transplant surgeons who would take the risk of a partial liver transplant which they have high likelihood of being a death sentence for the patient (not sure if you read but they need a full liver, from a cadaver, not partial,) and want to willingly throw their name in with another patient to discuss during M&M.
This is coming directly from familiarity with the procedure, comorbidities, and other factors from a general surgeon at a top 10 hospital in the US.