What were the disadvantages of the European integration?

European integration has faced several disadvantages, including the loss of national sovereignty as member states cede certain powers to EU institutions, which can lead to tensions between national and EU interests. Economic disparities among member countries can create imbalances, with wealthier nations often bearing more financial burdens. Additionally, the rise of Euroscepticism indicates public discontent with perceived democratic deficits and bureaucratic overreach, potentially undermining the legitimacy of the integration process.