Well, the first thing I want to say is Bernard Lewis
If you even mention him in my Phd department it's an automatic downgrading ! It's only half a joke - he is really not a serious scholar. Kind of to Islamic studies what David Irving is to Judaic.
Anyway, he plays on the the fears nicely. DMZ probably reads him. But to some serious points:
There are people who want to control your mind - one of their weapons is to reduce everything to good/bad, black/white simplistic notions of everything.
Once you buy into this you can be completely in binary fashion like a computer.
So the first thing is: think and find out for yourself. Submit everything
to critical reason and realise there are people trying to control your mind:
If a politician uses this technique he is one of them.
If the local Mullah uses this technique he is one of them.
If a poster here uses this technique he is one of them.
If a newspaper uses this technique....and so on.
So, in the present instance we have a situation where in Islam we have some high-profile maniacs who use violence and some people who say that Islam is peaceful and that the two are opposed.
Obviously only one of these can be right and this is something that could be investigated BUT
the people who want to control your thinking don't accept this logical distinction.
They say (Lewis) 'Europe will be Islamic'. Well which type ? Radical or peaceful ? Doesn't matter - they are black/white and are not making the distinction.
So the question really isn't about Islamicisation - after all, would millions of Christians, Jews, atheists and Sikhs convert (yes, I know the subtext is they will be killed or coerced - but this is Lewis neurosis coming through), despite the fact it is forbidden in the Qur'an to convert such people who are regarded as 'believers' - the question is: do you want to have your opinions formed by anyone other than yourself - Lewis here just did a load of people's thinking for them. Trust me - that's not good, whether it's Lewis, OBL or the Pope. Think for yourself.
And if you don't know something you are interested in - ask someone who does, test whether they are binary, avoid being binary yourself and submit the results to your critical faculties.
That's one of the things I learned from Islam.