What remains unsaid is just what it would take to make those young Muslim men feel "comfortable and integrated" in a western society...

Often they will say they need to live in a totally Muslim society, not just a multicultural one. Because that is what is what Mohammed intended, that is what Allah wants, and that is what is needed to give people the social and psychological support they need to be able to live as "good Muslims". There are too many temptations to deviate in a non-Muslim society...

So if we accept that WE need to change, we would need to start requiring proper public "acceptance and respect" for Islam, i.e. social pressure (or legal) on women to dress "modestly", gender segregation in schools and other institutions, not serving alcohol or pork at public functions, public observance of Ramadan, etc....and it would still not be enough.