The lack of integration into France of many Muslims over a long period, combined with severe socio-economic problems, has produced bitterness, alienation, and fertile ground for radical imams who use the French separation between state and religion (Laïcité) to promote uncontrolled Islamist radicalization. The French leadership has failed to cope with these problems as it is not politically correct to intervene in religious matters. The ISIS terrorist attacks, perpetrated by radicalized French Muslims, brought the issues to the center of the public discourse. President Macron embraced many of his predecessor’s counterterrorism measures and moved further with ambitious deradicalization plans designed to address the core problems, including mounting suburban crime. However, increasing Muslim radicalization, as well as a growing left-right polarization regarding the ways to tackle the problem, still present serious challenges to the French republican order.