It's sad to say but today just like throughout human history, there are empires and there are colonies. But today's empires don't have much to do with nations and borders. Today's emperors are billionaires and mega corporations, buying up entire governments, rewriting laws to their advantage, hijacking tax payer's money and brainwashing the masses with their media.
We went from state colonialism to worldwide corporate colonialism.
Britain is a developing country. The USA is a developing country. China is a developing country. Russia is a developing country. .....
However, Liberia is a non-developing country. Myanmar is a non-developing country. Afghanistan is a non-developing country.
The first four are growing in infrastructure, research, technology, etc. The latter three are standing still or even deteriorating.
They're certainly not "Third World". That term is meaningless - where's the Second World?
The only accurate term is un-developed. (If you wish to be polite, call them under-developed.
Interesting the way the term has changed meaning. Originally it meant any country not in the Soviet or NATO blocks. In other words, it included such well developed countries as Switzerland and Ireland, and I am not sure but it may even have included China. In other words, Cold War neutral countries.
It is only over time that it has come to mean much the same as developing countries, perhaps of course because most of them were.
I gave it a thought. We should make new groups. Developed, developing and 3rd rate countries. Not all but many of the 3rd world countries are 'third rate' countries. Third world is a better term. Poor, backward, corrupt have been overused. The leaders of those countries have done very little for the struggling people.
If those countries find '3rd world' derogatory, they must take it as a wake up call and they haven't for 50 years except only one country did. China.
What started out as the NATO block, WARSAW block and the third group of countries, 'most' 3rd world countries rare marred by corruption, nation looting, poverty, religious influence, labor unions. They refuse to learn from advanced countries except copying using mobile phones for porn and downloading of music. A recent survey said the most personal internet use in these countries has been on mobiles (not on broadband internet on home computers) for these two purposes. India has a population of 1.3 billion people, has 950 million mobile phones and 85% personal use of the internet is on mobiles where people do not know how to look up a word on Google. Only 15% of that 85% have broadband internet on personal computers at home.
The 3rd world countries like India, Pakistan, Indonesia in Asia and many in Africa and Latin America have progressed only as much as time would take them ahead, not more. That is not to say there are not 3rd rate countries in the first two blocks.