I just don't want MY country overrun with people who do not share our views, religion, values or culture.
What about people who already live here/were born here, that don't share your religion,views, values or culture. What do we do with them?
Then what's the point of them being here? They can't pick and choose the bits they like (eg. freedom of speach, Westernised capitalist economy, subsidised housing, clean water, sanitation, healthcare, education, etc, etc) and at the same time reject the things that don't suit them and want to change our laws and behaviour.
Mixing different races and religions (N. Ireland, Israel, Bosnia) never works. You're just storing up big problems for the future. What's the point?