

No, as a lack of empathy isn’t the only defining characteristic of psychopathy. There is also a lack of remorse, disinhibition, and egocentrism amongst other traits.
A lack of empathy alone doesn’t make someone a psychopath. For example some people on the autistic spectrum can exhibit a lack of empathy but are not psychopaths. (Should be noted a lack of empathy is not a defining feature of autism - its variable and a lot of people on the autistic spectrum do have empathy).
So its true to say a lack of empathy is a feature of psychopathy but not true to say that psychopathy is the inability to be empathetic.
I’m a UK based professional and I come to the US for a conference each year. I won’t be coming again.
I dont want to have my phone searched at the border, I dont want to risk arbitrary arrest and detention without legal representation, and frankly I dont want to spend my money in the US anymore (its a week long conference and costs a couple of thousand pounds including conference fees, flights, hotel and expenses). I’m already trying to buy European because of trumps other behaviour, so not spending mony in going to theUS is an easy win too.
Now multiply that out - even if its a small percentage overall there are lots of people who are no longer going to want to visit the US in the current climate. Expect a downturn in US tourism guvent the horror stories that are coming our of US ICE detention centres.