Mary Jackson,
Even if immigration from muslim countries was just restricted to highly qualified doctors, engineers etc it would probably make a difference.
One reason why Europe seems to suffer more extremism and less integration from its muslim minorities than the USA or Canada could well be that North America has cherry picked skilled and educated people more while the UK, France or Germany have historically allowed large numbers of unskilled immigrants from backward and conservative rural areas in Pakistan, the Maghreb and Turkey respectively.
The culture class between Western societies and poor villages on the Pakistan/Afghan border or in deepest Kurdistan is far greater than between the west and upper middle class urban merchants and doctors from Tehran or Casablanca.
