Hundreds of thousands of Europeans took to the streets on Saturday in Belgium, France, Italy, and Portugal, in what were separate and uncoordinated demonstrations against the rising cost of living. France saw over 550,000 protesters in one of its most turbulent days in decades, with police facing off against demonstrators nationwide. Belgium saw tear gas and water cannon deployed in Brussels and Liège. Tens of thousands marched in Lisbon. Milan and Bologna saw clashes alongside peaceful rallies. The protests share overlapping structural grievances rather than a common organizing body. Housing costs in Portugal have more than doubled since 2017, with rents for new leases rising nearly as much. Students in Brussels have been protesting university registration fees for weeks. In France, the demonstrations are part of a broader wave that has already produced burning cars and buildings. Italian protesters threw stones at police in two cities. Alberto Alemanno, Professor of EU Law and Policy at HEC Paris, described France as the "epicentre" of the movement and said signs point to spillover into other European nations. He identified early-stage mobilizations in Greece, Germany, and Austria, with further action expected in the coming weeks. The grievances — underfunded education, rising costs, and uncertain prospects for graduates — are shared even if the movements are not formally linked. Governments are responding with a mix of dismissal and force. Portuguese Parliamentary Affairs Minister Carlos Abreu Amorim declared on Friday that the "government will not yield to shouts from the street." Protesters in Lisbon countered that their leaders are "out of touch." Belgian police accused demonstrators of launching missiles and setting fires. The pattern across all four countries is the same: authorities treating the symptoms with crowd control while the underlying cost pressures remain unaddressed. The timing is politically explosive. Alemanno pointed to an "unprecedented super-cycle of national elections" in the coming 12 months, with votes scheduled in Spain, France, Italy, and Poland. Cost-of-living anger channelled through elections has historically rewarded populist and anti-establishment parties — the exact dynamic that reshaped European politics after the 2008 financial crisis and again after the energy shock of 2022. The core extraction pattern is straightforward: housing markets, education systems, and labor markets are failing to deliver for working and middle-class households, while governments resist structural reform. Portuguese house prices doubling in six years is not a weather event — it reflects policy choices around supply, regulation, and speculation. The fiscal and political cost of inaction is now being paid in the streets. If this pattern continues for two decades without structural reform — in housing supply, wage policy, and education funding — the result is a permanent underclass locked out of ownership and stability, recurring political crises during each election cycle, and the steady erosion of institutional legitimacy across the EU. The protests are a symptom. The disease is policy paralysis in the face of extractive market dynamics.