Most observers understand the difference between a committed Christian who accepts Jesus as a model for living and a 'cultural Christian' who happens to live in a nation with a Christian heritage. Most Muslims do not.
It is the mark of an educated mind to be able to entertain a thought without accepting it.
We are increasingly recognising and accepting, respecting and celebrating, our cultural diversity.
Differences are not intended to separate, to alienate. We are different precisely in order to realize our need of one another.