[Margaret Pilkington]

The reason is simple...it is because they can.
If they abhorred the western style of life so much then why come to countries where this lifestyle is the norm.
If they want to live by barbaric seventh century rules then go to a country where these are the norm.
The young men go to the mosque and have their heads filled with twisted ideology......that is not Islam......they want to make the Islamic religion the only one to follow, but you do not convert minds with guns and bombs.
What Guinness says about the rise of Nazism is a very pertinent point.
This is fascism too.

If I went to another country for work or for a better life then I would try my best to adapt to the ways of that country. I would keep my own culture to a degree that didn't impose my culture/religion on my adopted land.

There are some Muslims who do not want to integrate....they do not want to be a part of the fabric of society in their new adopted country...they want that country to adapt to their needs. That cannot be right.