Perhaps you aren't much of a reader, or perhaps you haven't the time to read books, and so you haven't (yet) read "The Strange Death of Europe" and "The Madness of Crowds", which is why I would like you to at least listen to Douglas Murray's video clip.
Douglas Murray pretty much expresses what everyone sort of knows already but is afraid to say. Well, don't be afraid to listen to Douglas Murray for the next forty-five minutes, at the end of which you may do what I did quite some time ago, and go on ebay to order his books.