The US State Department has put together a convenient guide of the world’s Third World shitholes:
“Planning to travel abroad this year?
The State Department has new advisories at Travel.state.gov that rank every country on a scale of one to four to help travelers make informed decisions about their personal safety. The agency introduced the rankings this month to replace its longstanding system of warnings and alerts, which many travelers found difficult to grasp.
“Frankly, I personally was tired of explaining the difference between a travel warning and a travel alert even to some of my colleagues,” Michelle Bernier-Toth, the Bureau of Consular Affairs acting deputy assistant secretary for overseas citizens services, said during a conference call about the rankings. …”
Trump is right. These countries are all known Third World shitholes for the aforementioned reasons. The State Department even urges Americans to reconsider traveling there.