I have been following this in the news, and there certainly seems to be a growing right-wing trend amongst varying countries, and if things go further Trump and everyone else will be building walls to separate countries.
Every country has the first world, second world and third world people - some just have more. If the majority in the third world, then it is a third world country.
I believe third world people should remain in the third world, and perhaps if anything first world countries should be exporting their own third world people to third world countries. (not the other way around).
If a country can import first world people it is great, but if they let in third world people from other countries- then these third world people will just multiply- and eventually, first world countries will be dominated by third world majorities.That seems to be the drive behind the right-wing trend that is happening.
People around the world are looking at what is happening in South Africa, where many of the first world people are marginalised due to being a democratic minority.
Democracy only works where there is a dominant middle class- that is neither too far right or left wing. As soon as the majority is far left wing, the system is screwed.
The ignorant masses of the third world will end up voting in someone like Zuma as a president, while the population exceeds economic growth things will just continue to get worse.
Post-apocalyptic is the future, if the populations grows too much.