Actually, whether a surgery can be performed is a technical issue, and whether it should be performed is an ethical issue.
Currently, head transplant surgery has not even started; there is zero accumulation, and the so-called head transplant surgery that the world loudly debates completely lacks technical basis.
"If head transplant surgery could succeed, how wonderful that would be. It would truly benefit humanity. In the future, as long as the head is intact, there would still be hope of being saved. In the end, one could simply swap out the body. Why is it still ethically prohibited?" a standardized training student curiously asked.