Study after study has shown that younger Muslims are - in general - more radical than their elders. So this problem isnt going away. Instead it will only get worse.
Why are the young so easily radicalized?
Well, they compare themselves to whites in Europe. The whites have the jobs, the girls, the nice cars and clothes and none of the whites want anything to do with them. So OBVIOUSLY, to them..., the whites are horrible and need to die.
The whites of course, have their own nation, languages, customs, birth right and would just rather the muslimes go back to their own countries and live happily ever or whatever back home. The youngest of Europe are indeed the MOST populist! In Austria the left insisted on lowering the voting age to 16 and guess what? The 16-18 block was majority Populist.
The mosques of course use this, radicalize the youth, and then take money from arab nations to fund these youngsters in the effort to create a safe zone for the invaders.