The man described those sets of people as ‘evil’.
His tweet reads ;
You are evil if you are abroad and telling people not to come, or dissuading people from seeking their opportunities abroad also.
Evil does not begin to describe you. You can murder. Of course, I dissuade people from doing it illegitimately. But sitting pretty abroad and telling people not to come, because “it’s cold”, “it’s expensive”, “it’s lonely”, while you’re there is being silly, and that’s putting it mildly.