That 25% figure was not literal, but the point is that those refugees will almost certainly be unemployed. In countries with half the unemployment of Spain, refugees have a majority unemployment rate for their first five years.
Spain discovered the New World and that's about it. One-hit wonder. They were made Islam's bitch for a good while, had a brief golden age the highlight of which was raping and killing indigenous people (largely with disease), then proceeded bleed land from the Netherlands, France, their own colonies, and finally the USA over a few hundred years. Their colonies were poorly governed and they weren't capable of holding onto them nearly as well as other nations, though today they're increasingly approaching overtaking daddy if they ever get their shit in order. Franco was one of the most low-energy fascists in existence and only survived because we propped him up, just sad. Perpetual economic decline ever since they've tried and failed at stable democracy. Eastern Europe will soon overtake them as well. Compared to nearly any other significant European nation, they've had a pathetic record in science and engineering. While viewed as a romantic nation, even in the arts they pale relative to France, Italy, and Germany. Likely a very low IQ population. The ancient Iberians were in some respects more interesting than post-Islamic Spanish (and in all likelihood still relied on the Greeks). As an Englishman I'm sure you enjoy taking holiday there, however, so don't take anything I say too personally. They do have a wonderful climate and attractive people, apparently. If there's one nation in existence that deserves to have its population displaced, m and its land used by people more deserving, it's Spain.