You're right that any negative trends foster radical views such as nationalism and communism. However, the arguments you mention wouldn't work in Portugal. Por

You're right that any negative trends foster radical views such as nationalism and communism. However, the arguments you mention wouldn't work in Portugal. Portugal used to even have a negative net migration rate and suffers a labor shortage. Right now, the net migration rate is positive and low at around 0.5. That's a good trend, but there is still too much emigration of skilled Portuguese people due to weak economy and structural problems. The problem is not immigration, the problem is that wealth is distributed very unevenly. Average salaries are low in Portugal, many people have to do with very low salaries and few people in Lisbon and Porto make a lot of money. Although it luckily went down from nearly 0.4, the Gini index in Portugal is still relatively high for a Western European country at 0.33. This wealth disparity in combination with laws and politics that favor landlords, property speculation, and building hotels instead of apartment buildings lead to the housing crisis.