I happen to think 100% of followers of RADICAL Islam wish harm on non-believers. The point I've been trying to make for years now, is that these individuals and groups are an off-set, ie different from, the large majority of Muslims around the world. The followers of radical Islam are increasingly ostracized and rejected by mainstream Muslims.
Muslim extremists need to be identified - including the fringe extremist mosques and imans, along with the terrrorists themselves and their sympathizers - and need to be isolated structurally from regular, ordinary, law abiding Muslims, imans and mosques. These fringe, criminal elements then need to be hunted down, tried and prosecuted. This is mainly a policing issue, less of a military issue, as far as on mainland Europe.
To me the most unbelievable aspect of what's happening in Europe is the freedom of movement of terrorists and criminals flying back and forth between Europe and places like Syria, Afghanistan and Iraq. These people returning 'home' to France, Belgium, the UK or elsewhere should be arrested on sight when landing at the airport. Arrested, held, interrogated. Then either locked up, or at the minimum placed under house arrest and surveilled. The terrorist attacks over the past few years have been predominantly carried out by these types of criminals, not neccesarily religious zealots, but mainly petty crooks and thieves that flew to the ME, got trained by and fought with ISIS then returned back to Europe to carry out attacks here.
In places where ISIS operates as a clandestine military organization, ie in Syria, Iraq, and Afghanistan, they should be hammered as hard as possible and taken out, as was the case with the MOAB dropped on the cave in Afghanistan. But here too, the utmost care should be taken to protect innocent civilians, families and children who are caught up in this mess.