More than just numbers, the more relevant question is: Are Muslims doing their fair share to the society that has made them their own?
For example: Do they have proportionate share in paying taxes, in the education system, medical system, Science, in the various professions etc.
From the accounts that I am aware of, that is not the case. A disproportionate number is dependent on state doles, refuses to learn the national language, is vengeful towards the host society, feels alienated, is not integrated and rouses suspicions of the mainstream society.
Not a happy situation at all. If these trends continue and just the numbers increase without the contribution to society, guess what is in store.
The rise of the likes of National Front that would seek to violently drive out all people they feel are non-British!