Trump might be vaguely aware that a very large group of mental health professionals called him dangerous, or more likely he's oblivious to this but some of his zealous minions might inform him, therefore in addition to putting journalists in prison he might want to round them up too.
If he managed to lock up a significant number this would severely exacerbate the mental health crisis as therapists would be even harder to find than they now are.
One of the terms frequently used to describe Trump was malignant narcissist so his gestapo might get to web searching who wrote about him having this disorder.
If his lackeys Googled Trump malignant narcissist they'd have to go to page three to find something I wrote. Find me they would. Who is the guy they might say, never heard of him but what they hell let's show that nobody no matter how obscure they are can escape our reach.
I admit that I am pretty impressed with myself even making it onto page three of that Internet search considering who else's articles and publications precedes mine.
My story is third from the bottom shown above.
This is what I wrote. It clearly makes both Robert S. Becker, whose article gave me the idea for mine, and me candidates for Trump's new gulag or an expanded Guantanamo Bay although Becker is actually well known.