Please don't throw in the word 'magically'. It's denigrating. The crisis doesn't magically end itself. I know that. And you should just assume that I know that. You snipped out where I hinted at the part of a solution. It requires military conquest of un-controlled territories, and having those territories placed back under governmental controls. That's an ongoing process. But even an escalation of this process will require handling refugees. I asked before, what's the acceptable ratio of radical to non-radical deaths? The places where the people are fleeing have ongoing murders happening at ratios vastly, vastly higher than the ratios we see in countries that accept refugees.
Are you performing some calculation, where some number of refugees are more expendable than European citizens? Are you suspecting that your version of refugee camps will create fewer extremists? My assumption is that radicalization is less likely to occur once the integration process has begun than if someone is kept in a camp. It's like jails causing more criminality.