¿Inmigrantes? Sí, pero cualificados : Por qué una inmigración desordenada, masiva y de baja cualificación pone en riesgo nuestro estado de bienestar

For years, the debate on immigration in Spain has oscillated between moral pronouncements and uncomfortable silence. It is often repeated that immigrants will sustain pensions, rejuvenate the population, and guarantee the future of the welfare state. But this is not necessarily the case. In this book, Eduardo Arriero analyzes the real impact of immigration on the welfare state. Using fiscal simulations, official statistics, and international comparisons, Arriero demonstrates that not all immigration contributes equally and that massive, disorderly, and low-skilled immigration not only fails to solve Spain's structural problems but tends to exacerbate them. The core of the argument is clear: how many arrive, but above all, who they are and under what conditions. In his analysis, he addresses the demographic winter, the collapse of the pension system, the growing pressure on public services —healthcare, education, housing, and security— and the perverse incentives of a model that rewards dependency and discourages genuine integration. Contrary to the prevailing narrative, Arriero demonstrates with figures that most current migration flows generate a negative fiscal balance throughout their life cycle and that only highly skilled immigration can contribute in a net and sustainable way. Far from alarmism or naive optimism, this book is an invitation to revive a rational, sincere, and politically courageous debate. It is a book that does not propose closing borders, but rather opening our eyes: linking immigration with productivity, rights with duties, and solidarity with responsibility. Because defending the welfare state requires more than good intentions: it requires decisions based on reality.