So if these countries aren't shit holes, why aren't liberals flocking to travel agencies to go vacation there?

Sometimes People need a sharp slap across the face to wake up, same should go for countries. There is a list of the Top10 countries to live in, what wrong with a list of the Top10 ShIthole countries that you wouldn't want to live in.
I believe in free speech as distastfull as it can be at times, overall intellect wins out, censorship is tunnel vision. If you want news you need ZeroHedge.

The State Department usually advises against it:

Reconsider travel to Haiti due to crime and civil unrest.

Violent crime, such as armed robbery, is common. Local police may lack the resources to respond effectively to serious criminal incidents or emergencies. Protests, tire burning, and road blockages are frequent and often spontaneous.

Because people generally don't use travel agents anymore L😂L...but I'm sure your travel agent can help you obtain some travelers cheques 😉

Um...because they don't want to. I don't think France is a shithole but I don't want to go on vacation there.