Fair enough, why so? Where has forced assimilation and banning worked completely?
Forced? Well if you want forced assimilation then there is extreme indoctrination techniques such as training kids to be Taliban suicide bombers:
http://www.youtube.com/watch?v=aoGJP02CtPAIf you are referring to assimilation of general people in society, then force would be somewhere like Saudi I guess. It's pretty forceful under it's uber strict laws. If you are referring to those assimilated out of choice to more developed societies - then I guess America is a good example. A key difference between the US and Europe is the lack of welfare in the US which means people have to get on and earn a living. Parts of the US has almost lost the meaning of being a real Muslim, such as Rima Fakih or Zeba Khan.
How will you get Muslims to be comfortable with a non Muslim government deciding for them what is good Islam, particularly one that also takes part in controversial wars in Islamic countries?
As mentioned, Muslims in the UK migrated either currently or originally for economic reasons. The majority in their inner hearts just want a decent living and will respect the law of the land, and will find ways to reason with themselves one way or another. I find it funny when a successful relative of mine hates the UK government for the war in the Middle East, hates Tony Blair, thinks all the news off Sky News is sheer propaganda - but then continues to focus his life around the restaurant business selling van loads of alcohol every week. Is he comfortable with Tony Blair? No. Does he get on with his life to pay taxes that benefit society? Yes.
Let's wait and see what happens in France, spring 2011.