The end of empires and halt of expansionism after the two World Wars led to the creation of nation states around the world. Many of these states are created based on an ethnic, cultural or religous common identity. However, many of these boundaries have been imperfectly drawn. They have divided communities across borders or placed together groups who don't strongly relate to one another. This has led to many border disputes, wars and internal strife. This is most noticable in the Middle East and South Asia.
The Sykes Picot borders drawn by the French and British have proven to be disastrous for the Middle East. It took little consideration of ethnic or sectarian affiliations, and part of its legacy is the civil wars we see today across the Middle East, most noticably Syria, Iraq and the Israel-Palestine conflict. In South Asia, the British hastily drew the border that divided its former Indian colony. The Pakistan and India border failed to take the Kashmir region into consideration, and has thus resulted in several wars between these two countries and an ongoing territorial dispute, in addition to armed rebellion within Indian controlled Kashmir. These inperfect borders have led to many people fleeing their countries as well. These are just some examples, disputes exist almost everywhere and all this is leading to a decline in nationalist affiliations.
Today, globalisation has become the trend that is further contributing to declining nationalism. People and goods are easily moving across the globe and national borders are losing significance. This is most noticable in developed countries. The European Union has a shared visa policy allowing people to visit any country within the Union. This has huge benefits for both tourism and also the local economies. It attracts huge investment due to ease for companies to operate in the region.
Not only has the economy become globalised but people themselves are becoming used to living international lives. It is common for people to work in several different countries and to have families scattered across the globe. Economic immigrants as well as refugees and assylum seekers are moving in record numbers. With time people lose affiliation with their home countries and build a more global mindset. They have relationships and opportunities scattered across the globe rather than one country. All this contributes to the decline in nationalism amongst people.
Another major factor that is leading to the end of nationalism is technology. Technology has given us the internet, air travel and countless other tools of globalisation. There is a flee flow of information and social interaction amongst people globally due to the internet. Long distances are being travelled quicker and easier than ever. Further advancements in technology like the Metaverse will make physical barriers less relevant than ever before. People will be able to have immersive interactions with others even as they live thousands of kilometers away.
The combined effects of imperfectly drawn borders, globalisation and technological advancement is leading to the death of nationalism. People are developing a more global and international mindset and losing affiliation with a certain land. Their identity is less about their home country and more about what they have achieved. This has several impacts on the future of humanity. We could see borders become irrelevant as people freely move across the world. Multicultural societies will become more prevalent as they already have to a great extent in the Western world. Race and language barriers will decrease. There is certainly a lot of benefits to the decline in nationalism.