Modern psychologists who clocked Trump's sociopathy are grounded in research and simple, straightforward tools like symptom checklists.
As the article notes, the rootedness of this science is also proved by the nearly perfect track record of predicting his behavior based on a sociopath's profile.
Also, like ... The standard for "should you elect this guy" is very different from either "guilty beyond a reasonable doubt" or "clinical diagnosis". Just a much lower bar, and the red flags are numerous and waving vigorously.
The hesitation to say publicly what all rational psychologists will privately say — Trump's sociopathy is off the charts — has little to do with medical ethics at this point. Like the hesitation to hold him legally accountable, it's about privilege.