Explain thoroughly the migration phenomenon and the inter ethnic relations in the current globalization context.
Globalization makes migration more common and increases the numbers of migrants moving around the world. It tends to bring people for different ethnic groups into contact with one another more often, sometimes leading to conflict.
Globalization tends to increase the amount of migration in the world. Technology makes it easier for people to move around the world. It also makes it easier for people to be in communication with people in other countries. When people can communicate with people in other countries, they become more psychologically willing to move. They may also be more willing to move if they can access media from other countries, learning about those countries via (for example) the internet. In other words, the Syrians or Eritreans mentioned in the article you linked to might be in contact with compatriots in Europe or might at least have become more aware of opportunities in Europe via the internet or television. This combination of a greater willingness to move and a greater ability to accomplish movement leads to greater levels of migration.
As people become more able to move around the globe, interethnic encounters increase and become more intensive. Increased migration means, for example, that there are many more Muslims in Sweden than there were a decade or so ago. When people from different ethnicities interact, there is a potential for both good and bad effects on interethnic relations. More interaction means more chances to get to know one another and to get along better. However, it also means more chances for misunderstandings and hatreds to arise.
Thus, globalization has led to more migration and to greater interaction between people of different ethnicities.